1– Smith, K.; El-Hiti, G.A.; Abdo, M.A.; Abdel-Megeed, M.F. Regiospecific electrophilic substitution of aminoquinazolinones: directed lithiation of 3-(pivaloylamino)- and 3-(acetylamino)-2-methylquinazolin-4(3H)-ones. J. Chem. Soc., Perkin Trans. 1 1995(8), 1029–1033. https://doi.org/10.1039/P19950001029.
 
2– Abdel-Megeed, M.F.; Aly, Y.L.; Saleh, M.A.; Abdo, I.M.; El-Hiti, G.A.; Smith, K. Novel one-pot procedure for the preparation of 3-substituted 2-thioxo-4(3H)-quinazolinones. Sulfur Lett. 1995, 19(3), 129–140.
 
3– Abdo, M.A.; Abdel-Megeed, M.F.; Saleh, M.A.; El-Hiti, G.A.-R. Reaction of 6-substituted 3-amino-2-aryl-4(3H)-quinazolinones with D-glucose and D‑galactose. Polish J. Chem. 1995, 69(4), 583–590. https://hero.epa.gov/hero/index.cfm/reference/details/reference_id/1195804.
 
4– Abdel-Megeed, M.F.; Saleh, M.A.; Abdo, M.A.; El-Hiti, G.A. Reaction of 6-substituted 3-amino-2-phenyl-4(3H)-quinazolinones with D-ribose and L-arabinose. Collect. Czech. Chem. Commun. 1995, 60(6), 1016–1025. https://doi.org/10.1135/cccc19951016.
 
5– Smith, K.; El-Hiti, G.A.; Abdel-Megeed, M.F.; Abdo, M.A. Lithiation of 3-(acylamino)-2-unsubstituted-, 3-(acylamino)-2-ethyl- and 3-(acylamino)-2-propyl-4(3H)-quinazolinones: convenient syntheses of more complex quinazolinones. J. Org. Chem. 1996, 61(2), 647–655. https://doi.org/10.1021/jo950988t.
 
6– Smith, K.; El-Hiti, G.A.; Abdel-Megeed, M.F.; Abdo, M.A. Lithiation of 2-alkyl-3-amino- and 2-alkyl-3-(methylamino)-4(3H)-quinazolinones. J. Org. Chem. 1996, 61(2), 656–661. https://doi.org/10.1021/jo950989l.
 
7– Saleh, M.A.; Abdo, M.A.; Abdel-Megeed, M.F.; El-Hiti, G.A. Amadori rearrangement of N-glucosides of 6-substituted 3-amino-2-aryl-4(3H)-quinazolinones. Indian J. Chem. 1996, 35B(2), 147–150. https://doi.org/10.1002/chin.199617207.
 
8– El-Hiti, G.A.-R. A convenient synthesis of 1,2-dihydro-1,2,4-triazolo[3,2-b]quinazolin-9(1H)-ones and their 1,2,4-triazolo derivatives. Bull. Chem. Soc., Jpn. 1997, 70(9), 2209–2213. https://doi.org/10.1246/bcsj.70.2209.
 
9– El-Segaii, A.A.; El-Hiti, G.A.; El Assal, A.M. Sayyah. S.M. Two organometallic compounds for improving the properties of acrylic resin. Cairo Dent. J. 1997, 13(S), 43–49.
 
10– Smith, K.; El-Hiti, G.A.; Hamilton, A. Unexpected formation of substituted anilides via reactions of trifluoroacetanilides with lithium reagents. J. Chem. Soc., Perkin Trans. 1 1998(24), 4041–4042. https://doi.org/10.1039/A808004F.
 
11– El-Shora, A.I.; El-Hiti, G.A. Crystal and molecular structure of 2-hydrazino-3-methylquinoxaline. Egypt. J. Solids 1998, 21(1), 111–117.
 
12– El-Shora, A.I.; El-Hiti, G.A. Crystal and molecular structure of 3-amino-2-(4-methylphenylamino)quinazolin-4(3H)-one. Egypt. J. Solids 1998, 21(2), 163–170.
 
13– Smith, K.; El-Hiti, G.A.; Pritchard, G.J.; Hamilton, A. Carbonylation of various organolithium reagents. A novel approach to heterocycles via intramolecular trapping of aromatic acyllithiums. J. Chem. Soc., Perkin Trans. 1 1999(16), 2299–2303. https://doi.org/10.1039/A903467F.
 
14– Smith, K.; El-Hiti, G.A.; Shukla, A.P. Variation in site of lithiation with ring substituent of N'-aryl-N,N-dimethylureas; application in synthesis. J. Chem. Soc., Perkin Trans. 1 1999(16), 2305–2313. https://doi.org/10.1039/A903464A.
 
15– Smith, K.; El-Hiti, G.A.; Hou, D.; DeBoos, G.A. Preparation and use of sterically hindered organoditripylhydroborates and their polystyrene derivatives for the diastereoselective reduction of ketones. J. Chem. Soc., Perkin Trans. 1 1999(19), 2807–2812. https://doi.org/10.1039/A904260A.
 
16– Smith, K.; El-Hiti, G.A.; Hawes, A.C. A novel procedure for the formation of isatins via carbonylation of lithiated N'-aryl-N,N-dimethylureas. Synlett 1999(S1), 945–947. https://doi.org/10.1055/s-1999-3085.
 
17– El-Hiti, G.A. Proton nuclear magnetic resonance spectroscopy: significant barriers to rotation about N‑N bonds in 3-acylaminoquinazolin-4(3H)-one derivatives. Spectroscopy Lett. 1999, 32(4), 671–677. https://doi.org/10.1080/00387019909350016.
 
18– Smith, K.; El-Hiti, G.A.; Abdel-Megeed, M.F.; Abdo, M.A. Convenient synthesis of more complex 2-substituted 4(3H)-quinazolinones via lithiation of 2‑alkyl-4(3H)-quinazolinones. Collect. Czech. Chem. Commun. 1999, 64(3), 515–526. https://doi.org/10.1135/cccc19990515.
 
19– Abdo, M.A.; Zeid, I.F.; El-Hiti, G.A.; Mahmoud, O.E. Some reactions of 2-phenyl-4(3H)-quinazolinones. Indian J. Chem. 1999, 38B(7), 850-853. https://doi.org/10.1002/chin.200003152.
 
20– Abdel-Megeed, M.F.; El-Hiti, G.A.; Saleh, M.A.; Abdo, M.A.; Awadalla, S.E. A convenient synthesis of novel hydrazones and osazones of 2-hydrazino-3-phenyl-4(3H)-quinazolinone. Rev. Roum. Chim. 1999, 44(1), 67–76.
 
21– Abdel-Megeed, M.F.; El-Hiti, G.A.; Ibrahim, H.A.; Issa, R.M. Mass spectral fragmentation patterns of benzilic and mandelic acid hydrazides and their arylidene derivatives. Delta J. Sci. 1999, 23(1), 104–116.
 
22– El-Hiti, G.A.; Mahgoub, S.A.; Abdel-Megeed, M.F.; Mahmoud, Y.A.-G. Synthesis and biological activities of novel (3-methylquinoxalin-2-yl)hydrazones and osazones of aldoses. Delta J. Sci. 1999, 23(1), 117–130.
 
23– Abdel-Megeed, M.F.; El-Hiti, G.A.; Teniou, A. The action of methylmagnesium iodide on 6-bromo-2-phenyl-4H-3,1-benzoxazinone and its 4(3H)-quinazolinones. Delta J. Sci. 1999, 23(1), 131–137.
 
24– Smith, K.; El-Hiti, G.A.; Hammond, M.E.W.; Bahzad, D.; Li, Z.; Siquet, C. Highly efficient and selective electrophilic and free radical catalytic bromination reactions of simple aromatic compounds in the presence of reusable zeolites. J. Chem. Soc. Perkin Trans. 1 2000(16), 2745–2752. https://doi.org/10.1039/B002157L.
 
25– El-Hiti, G.A. Synthesis of substituted quinazolin-4(3H)-ones and quinazolines via directed lithiation. Heterocycles 2000, 53(8), 1839–1868. https://doi.org/10.3987/REV-00-535.
 
26– El-Hiti, G.A.; Abdel-Megeed, M.F.; Mahmoud, Y.A.-G. Synthesis and antimicrobial activities of novel sugar (2-phenylquinazolin-4-yl)hydrazones and their osazones. Indian J. Chem. 2000, 39B(5), 368–376. https://doi.org/10.1002/chin.200103194.
 
27– Abdel-Megeed, M.F.; El-Hiti, G.A.; Abdo, M.A.; Saleh, M.A. A convenient synthesis of novel N-glycosides of 3-(aminophenyl)-4(3H)-quinazolinone derivatives. Rev. Roum. Chim. 2000, 45(6), 545–553. https://doi.org/10.1002/chin.200128202.
 
28– El-Hiti, G.A. Novel sugar (quinazolin-4-yl)hydrazones and dihydrazones (osazones) as potential antimicrobial agents. Alex. J. Pharm. Sci. 2000, 14(1), 37–40.
 
29– El-Hiti, G.A. Recent advances in the synthesis of sulfonic acids. Sulfur Reports 2001, 22(3), 217–250. https://doi.org/10.1080/01961770108047962.
 
30– Abdel-Megeed, M.F.; El-Hiti, G.A.; Zied, T.M. Synthesis of some hydrazones and osazones containing bromoquinazolines as biologically active compounds. Delta J. Sci. 2001, 25(1), 32–38.
 
31– Smith, K.; El-Hiti, G.A. Aiming for greener chemical processes: The Centre for Clean Chemistry in Swansea has been recognised for its work on selective aromatic substitution reactions. Green Chem. Res. Net. NewsLett. (GCRN) 2002, 2, 5–6.
 
32– El-Hiti, G.A.; Abdel-Megeed, M.F.; Zied, T.M. Synthesis and reactions of some 3-aryl-2-thioxoquinazolin-4(3H)-ones. Indian J. Chem. 2002, 41B(7), 1519–1522. https://doi.org/10.1002/chin.200243189.
 
33– Smith, K.; Roberts, S.D.; El-Hiti, G.A. Study of regioselective dialkylation of naphthalene in the presence of reusable zeolite catalysts. Org. Biomol. Chem. 2003, 1(9), 1552–1559. https://doi.org/10.1039/B212775J.
 
34– Smith, K.; El-Hiti, G.A.; Jayne, A.J.; Butters, M. Acetylation of aromatic ethers using acetic anhydride over solid acid catalysts in a solvent-free system. Scope of the reaction for substituted ethers. Org. Biomol. Chem. 2003, 1(9), 1560–1564. https://doi.org/10.1039/B301260C.
 
35– Smith, K.; El-Hiti, G.A.; Jayne, A.J.; Butters, M. Acylation of aromatic ethers over solid acid catalysts: scope of the reaction with more complex acylating agents. Org. Biomol. Chem. 2003, 1(13), 2321–2325. https://doi.org/10.1039/B303906D.
 
36– Smith, K.; El-Hiti, G.A.; Hawes, A.C. Carbonylation of doubly lithiated N'-aryl-N,N-dimethylureas: a novel approach to isatins via intramolecular trapping of acyllithiums. Synthesis 2003(13), 2047–2052. https://doi.org/10.1055/s-2003-41019.
 
37– Smith, K.; El-Hiti, G.A.; Mahgoub, S.A. Lithiation and side-chain substitution of 3-alkyl-1H-quinoxalin-2-ones. Synthesis 2003(15), 2345–2348. https://doi.org/10.1055/s-2003-41064.
 
38– El-Hiti, G.A. A convenient procedure for the synthesis of novel modified 3‑substituted 1H-quinoxaline-2-thiones via side-chain lithiation of 3-alkyl-1H-quinoxaline-2-thiones. Synthesis 2003(18), 2799–2804. https://doi.org/10.1055/s-2003-42486.
 
39– Smith, K.; El-Hiti, G.A.; Abdel-Megeed, M.F. Unexpected products from carbonylation of lithiated quinazolin-4(3H)-one derivatives. Russ. J. Org. Chem. 2003, 39(3), 430–435. https://doi.org/10.1023/A:1025558201900.
 
40– El-Hiti, G.A. A convenient procedure for the formation of 2-substituted thiazolopyridines. Monatsh. Chem. 2003, 134(6), 837–841. https://doi.org/10.1007/s00706-002-0557-9.
 
41– El-Brollosy, N.R.; Abdel-Megeed, M.F.; El-Hiti, G.A.; Genady, A.R. Synthesis of some novel N-glycosyl amines from aminoquinazolin-4(3H)-one derivatives. Afinidad 2003, 60(504), 199–205. https://dialnet.unirioja.es/servlet/articulo?codigo=2642747.
 
42– Smith, K.; Lock, S.; El-Hiti, G.A.; Wada, M.; Miyoshi, N. A convenient procedure for bismuth-mediated Barbier-type allylation of aldehydes in water containing fluoride ions. Org. Biomol. Chem. 2004, 2(6), 935–938. https://doi.org/10.1039/B400179F.
 
43– Smith, K.; Ewart, G.M.; El-Hiti, G.A.; Randles, K.R. Study of regioselective methanesulfonylation of simple aromatics with methanesulfonic anhydride in the presence of reusable zeolite catalysts. Org. Biomol. Chem. 2004, 2(21), 3150–3154. https://doi.org/10.1039/B409922B.
 
44– El-Hiti, G.A. A simple procedure for the side-chain lithiation of 2-alkyl-3H-quinazoline-4-thiones: application in synthesis. Synthesis 2004(3), 363–368. https://doi.org/10.1055/s-2004-815923.
 
45– Smith, K.; El-Hiti, G.A.; Abdel-Megeed, M.F. Regioselective lithiation of chiral 3-acylamino-2-alkylquinazolin-4(3H)-ones: application in synthesis. Synthesis 2004(13), 2121–2130. https://doi.org/10.1055/s-2004-829169.
 
46– Smith, K.; El-Hiti, G.A. Regioselective control of electrophilic aromatic substitution reactions. Curr. Org. Synth. 2004, 1(3), 253–274. https://doi.org/10.2174/1570179043366747.
 
47– Smith, K.; Liu, S.; El-Hiti, G.A. Use of ionic liquids as solvents for epoxidation reactions catalysed by a chiral Katsuki-type salen complex: enhanced reactivity and recovery of catalyst. Catal. Lett. 2004, 98(2–3), 95–101. https://doi.org/10.1007/s10562-004-7921-9.
 
48– El-Hiti, G.A. Application of organolithium in organic synthesis: a convenient synthesis of more complex 6‑substituted 3H-quinzolin-4-ones. Monatsh. Chem. 2004, 135(3), 323–331. https://doi.org/10.1007/s00706-003-0110-5.
 
49– Smith, K.; Liu, C.-H.; El-Hiti, G.A.; Kang, G.S.; Jones, E.; Clement, S. G.; Checquer, A. D.; Howarth, O. W.; Hursthouse, M. B.; Coles, S. J. An extensive study of bromination of cis,trans,trans-1,5,9-cyclododecatriene; product structures and conformations. Org. Biomol. Chem. 2005, 3(10), 1880–1892. https://doi.org/10.1039/B417156J.
 
50– Smith, K.; Liu, S.; El-Hiti, G.A. Regioselective mononitration of simple aromatic compounds under mild conditions in ionic liquid. Ind. Eng. Chem. Res. 2005, 44(23), 8611–8615. https://doi.org/10.1021/ie050047z.
 
51– El-Hiti, G.A.; Abdel-Megeed, M.F. Synthesis of glycosides containing quinazolin-4(3H)-one ring system. Heterocycles 2005, 65(12), 3007–3041. https://doi.org/10.3987/REV-05-602.
 
52– Smith, K.; El-Hiti, G.A.; Hegazy, A.S. A Simple and convenient procedure for lithiation and side-chain substitution of 2-alkyl-4-methylsulfanylquinazolines and 2-alkyl-4-methoxyquinazolines. Synthesis 2005(17), 2951–2961. https://doi.org/10.1055/s-2005-916036.
 
53– Smith, K.; El-Hiti, G.A.; Hegazy, A.S. Addition of alkyllithiums to 3H-quinazoline-4-thione and substituted quinazoline derivatives; application in synthesis. J. Sulfur Chem. 2005, 26(2), 121–131. https://doi.org/10.1080/17415990500151472.
 
54– Smith, K.; Liu, C.-H.; El-Hiti, G.A. A novel supported Katsuki-type (salen)Mn complex for asymmetric epoxidation. Org. Biomol. Chem. 2006, 4(5), 917–927. https://doi.org/10.1039/B517611P.
 
55– Smith, K.; El-Hiti, G.A. Regioselective electrophilic aromatic substitution reactions over reusable zeolites. Curr. Org. Chem. 2006, 10(13), 1603–1625. https://doi.org/10.2174/138527206778249685.
 
56– Smith, K.; El-Hiti, G.A.; Al-Shamali, M. Rearrangement of epoxides to carbonyl compounds in the presence of reusable acidic zeolite catalysts under mild conditions. Catal. Lett. 2006, 109(1–2), 77–82. https://doi.org/10.1007/s10562-006-0060-8.
 
57– Abdel-Megeed, M.F.; Azaam, M.M.; El-Hiti, G.A. 3-Arylazo-2-thioxo-2,3-dihydro-1H-quinazolin-4-ones as azo disperse dyes for dyeing polyester fabrics. Monatsh. Chem. 2007, 138(2), 153–156. https://doi.org/10.1007/s00706-006-0582-1.
 
58– Smith, K.; Evans, D.A.; El-Hiti, G.A. Role of modern chemistry in sustainable arable agricultural products “in Sustainable Agriculture I” eds. Pollock, C.; Pretty, J.; Crute, I.; Leaver, C.; Dalton, H. Phil. Trans. R. Soc. B 2008, 363(1491), 623–637. https://doi.org/10.1098/rstb.2007.2174.
 
59– Smith, K.; El-Hiti, G.A.; Matthews, I.; Al-Shamali, M.; Watson, T. Rearrangement of epoxides to allylic alcohols in the presence of reusable basic resins. Catal. Lett. 2009, 128(1–2), 101–105. https://doi.org/10.1007/s10562-008-9705-0.
 
60– Smith, K.; Ajarim, M.D.; El-Hiti, G.A.; Peters, C. Catalytic mononitration of phenol using iso-propyl nitrate over acidic zeolite catalysts. Top. Catal. 2009, 52(12), 1696–1700. https://doi.org/10.1007/s11244-009-9304-3.
 
61– Smith, K.; El-Hiti, G.A.; Hegazy, A.S. Unexpected variations in sites of lithiation of N-(2-methoxybenzyl)pivalamide. Synlett 2009(14), 2242–2244. https://doi.org/10.1055/s-0029-1217722.
 
62– Metwally, M.A.; Shaaban, S.; Abdel-Wahab, B.F.; El-Hiti. G.A. 3-Acetylindoles: synthesis, reactions and biological activities. Curr. Org. Chem. 2009, 13(14), 1475–1496. https://doi.org/10.2174/138527209789055063.
 
63– Smith, K.; El-Hiti, G.A.; Hegazy, A.S.; Fekri, A.; Kariuki, B.M. Variation in sites of lithiation of substituted N-benzylpivalamides and N'-benzyl-N,N-dimethylureas: application in synthesis. Arkivoc 2009, 2009(xiv), 266–300. https://doi.org/10.3998/ark.5550190.0010.e24.
 
64– Metwally, M.A.; Abdel-Wahab, B.F.; El-Hiti, G.A. 2-Acetylbenzofurans: synthesis, reactions and applications. Curr. Org. Chem. 2010(1), 14, 48–64. https://doi.org/10.2174/138527210790226401.
 
65– Smith, K.; Ajarim, M.D.; El-Hiti, G.A. Regioselective nitration of deactivated aromatics using acyl nitrates over reusable acidic zeolite catalysts. Catal. Lett. 2010, 134(3–4), 270–278. https://doi.org/10.1007/s10562-009-0258-7.
 
66– Smith, K.; El-Hiti, G.A.; Hegazy, A.S.; Fekri, A. A simple and convenient high yielding synthesis of substituted isoindolines. Heterocycles 2010, 80(2), 941–956. https://doi.org/10.3987/COM-09-S(S)61.
 
67– Smith, K.; El-Hiti, G.A.; Hegazy, A.S. One-pot synthesis of substituted isoindolin-1-ones via lithiation and substitution of N'-benzyl-N,N-dimethylureas. Chem. Commun. 2010, 46(16), 2790–2792. https://doi.org/10.1039/b926983e.
 
68– Smith, K.; El-Hiti, G.A.; Hegazy, A.S. Lateral lithiation of N'-(2-methylbenzyl)-N,N-dimethylurea and N-(2-methylbenzyl)pivalamide: synthesis of tetrahydroisoquinolines. Synthesis 2010(8), 1371–1380. https://doi.org/10.1055/s-0029-1219277.
 
69– Metwally, M.A.; Khalifa, M.E.; El-Hiti, G.A. Recent trends in the chemistry of aminobenzo[b]thiophenes. J. Sulfur Chem. 2010, 31(3), 205–229. https://doi.org/10.1080/17415991003721266.
 
70– Smith, K.; El-Hiti, G.; Alotaibi, M. Methods for the nitration of aromatic compounds. GB Patent Appl. 2010, 10/17344.1, October 14 2010. https://patents.google.com/patent/GB201017344D0/en.
 
71– Smith, K.; El-Hiti, G.A. Use of zeolites for green and para-selective electrophilic aromatic substitution reactions. Green Chem. 2011, 13(7), 1579–1608. https://doi.org/10.1039/C0GC00689K.
 
72– Smith, K.; Balakit, A.A.; Pardasani, R.T.; El-Hiti, G.A. New polymeric sulfide–borane complexes: convenient hydroborating and reducing reagents. J. Sulfur Chem. 2011, 32(4), 287–295. https://doi.org/10.1080/17415993.2011.590489.
 
73– El-Hiti, G.A.; Hussain, A.; Hegazy, A.S.; Alotaibi, M.H. Thioxoquinazoline derivatives: synthesis, reactions and biological activities. J. Sulfur Chem. 2011, 32(4), 361–395. https://doi.org/10.1080/17415993.2011.601417.
 
74– Smith, K.; El-Hiti, G.A.; Hegazy, A.S.; Kariuki, B.M. Simple and convenient one-pot synthesis of substituted isoindolin-1-ones via lithiation, substitution and cyclization of N'-benzyl-N,N-dimethylureas. Beilstein J. Org. Chem. 2011, 7, 1219–1227. https://doi.org/10.3762/bjoc.7.142.
 
75– Browne, K.A.; Deheyn, D.D.; El-Hiti, G.A.; Smith, K.; Weeks, I. Simultaneous quantification of multiple nucleic acid targets using chemiluminescent probes. J. Am. Chem. Soc. 2011, 133(37), 14637–14648. https://doi.org/10.1021/ja202221h.
 
76– Smith, K.; El-Hiti, G.A.; Al-Zuhairi; A.J. The synthesis of polymeric sulfides by reaction of dihaloalkanes with sodium sulfide. J. Sulfur Chem. 2011, 32(6), 521–531. https://doi.org/10.1080/17415993.2011.616589.
 
77– Abdel-Megeed, M.F.; Badr, B.E.; Azaam, M.M.; El-Hiti, G.A. Synthesis, antimicrobial and anticancer activities of a novel series of diphenyl 1-(pyridin-3-yl)ethylphosphonates. Bioorg. Med. Chem. 2012, 20(7), 2252–2258. https://doi.org/10.1016/j.bmc.2012.02.015.
 
78– Smith, K.; Al-Khalaf, A.K.H.; El-Hiti, G.A.; Pattisson, S. Highly regioselective di-tert-amylation of naphthalene over reusable HM zeolite catalyst. Green Chem. 2012, 14(4), 1103–1110. https://doi.org/10.1039/C2GC16443D.
 
79– Smith, K.; El-Hiti, G.; Alotaibi, M. Methods for the nitration of aromatic compounds. PCT/GB2011/051985; 13th October 2011, PCT Int. Appl. 2012, WO2012/049513 A1, published April 19 2012. https://patents.google.com/patent/WO2012049513A1/en.
 
80– El-Hiti, G.A. A tribute to Professor K. Smith: Arkivoc commemorative issue in honor of Professor K. Smith on the occasion of his 65th anniversary. Arkivoc 2012, 2012(vii), 1–11. https://doi.org/10.3998/ark.5550190.0013.701
 
81– El-Hiti, G.A.; Hegazy, A.S.; Alotaibi, M.H.; Ajarim, M.D. Reactions of organolithium reagents with quinazoline derivatives. Arkivoc 2012, 2012(vii), 35–78. https://doi.org/10.3998/ark.5550190.0013.704.
 
82– Smith, K.; El-Hiti, G.A.; Alshammari, M.B. Lithiation and substitution of N'-(ω-phenylalkyl)-N,N-dimethylureas. Synthesis 2012, 44(13), 2013–2022. https://doi.org/10.1055/s-0031-1291008.
 
83– Abdel-Megeed, M.F.; Badr, B.E.; Azaam, M.M.; El-Hiti, G.A. Antimicrobial activities of a series of diphenyl (4'-(aryldiazenyl)biphenyl-4-ylamino)(pyridin-3-yl)methylphosphonates. Phosphorous Sulfur Silicon Relat. Elem. 2012, 187(10), 1201–1206. https://doi.org/10.1080/10426507.2012.680084.
 
84– Smith, K.; Balakit, A.A.; El-Hiti, G.A. Poly(propylene sulfide)–borane: reagent for organic synthesis. Tetrahedron 2012, 68(38), 7834–7839. https://doi.org/10.1016/j.tet.2012.07.037.
 
85– Abdel-Megeed, M.F.; Badr, B.E.; Azaam, M.M.; El-Hiti, G.A. Synthesis and antimicrobial activities of diphenyl (arylamino)(1-phenyl-3-(pyridin-2-yl)-1H-pyrazol-4-yl)methylphosphonates. Phosphorous Sulfur Silicon Relat. Elem. 2012, 187(12), 1462–1468. https://doi.org/10.1080/10426507.2012.690117.
 
86– Abdel-Megeed, M.F.; Badr, B.E.; Azaam, M.M.; El-Hiti, G.A. Synthesis and antimicrobial activities of novel series of heterocyclic α-aminophosphonates. Arch. Pharm. 2012, 345(10), 784–789. https://doi.org/10.1002/ardp.201200109.
 
87– Smith, K.; El-Hiti, G.A.; Alshammari, M.B. Variation in the site of lithiation of 2-(2-methylphenyl)ethanamine derivatives. J. Org. Chem. 2012, 77(24), 11210–11215. https://doi.org/10.1021/jo3023445.
 
88– Smith, K.; El-Hiti, G.A.; Fekri, A.; Alshammari, M.B. Side-chain lithiation of 2- and 4-substituted pyridines: synthesis of more complex substituted pyridines. Heterocycles 2012, 86(1), 391–410. https://doi.org/10.3987/COM-12-S(N)33.
 
89– Abdel-Megeed, M.F.; Azaam, M.M.; El-Hiti, G.A. Diphenyl (4'-(aryldiazenyl)biphenyl-4-ylamino)(pyridin-3-yl)methylphosphonates as azo disperse dyes for dyeing polyester fabrics. J. Chem. 2013, 2013, 308419. https://doi.org/10.1155/2013/308419.
 
90– Smith, K.; Alotaibi, M.H.; El-Hiti, G.A. Highly regioselective dinitration of toluene over zeolite Hb. J. Catal. 2013, 297, 244–247. https://doi.org/10.1016/j.jcat.2012.10.017.
 
91– Smith, K.; El-Hiti, G.A.; Alshammari, M.B. Variations in site of lithiation of N-[(2-(4-methoxyphenyl)ethyl)]pivalamide; use in ring substitution. Synlett 2013, 24(1), 117–119. https://doi.org/10.1055/s-0032-1317859.
 
92– El-Hiti, G.A.; Smith, K.; Masmali, A.; Balakit, A.A.; Kariuki, B.M. 4-(5-{2-[5-(4-Cyanophenyl)-3-methylthiophen-2-yl]-3,3,4,4,5,5-hexafluorocyclopent-1-en-1-yl}-4-methylthiophen-2-yl)benzonitrile chloroform hemisolvate. Acta Cryst. 2013, E69(7), o1041. https://doi.org/10.1107/S1600536813014852.
 
93– Abdel-Megeed, M.F.; El-Hiti, G.A.; Badr, B.E.; Azaam, M.M. Synthesis of a series of diphenyl (arylamino)(pyridin-3-yl)methylphosphonates as potential antimicrobial agents. Phosphorous Sulfur Silicon Relat. Elem. 2013, 188(7), 879–885. https://doi.org/10.1080/10426507.2012.717141.
 
94– Smith, K.; El-Hiti, G.A. Greener Chemical Processes by Regioselective Aromatic Substitution Reactions of Simple Aromatics. Resonance Magazine 2013, 122-125.
 
95– El-Hiti, G.A.; Smith, K.; Jones, D.H.; Masmali, A.; Kariuki, B.M. (Z)-N-(2,6-Diisopropylphenyl)-4-nitrobenzimidoyl chloride. Acta Cryst. 2013, E69(9), o1384. https://doi.org/10.1107/S1600536813020862.
 
96– El-Hiti, G.A.; Smith, K.; Balakit, A.A.; Masmali, A.; Kariuki, B.M. (E)-3-(4-Bromo-5-methylthiophen-2-yl)acrylonitrile. Acta Cryst. 2013, E69(9), o1385. https://doi.org/10.1107/S1600536813019752.
 
97– El-Hiti, G.A.; Smith, K.; Elliott, M.C.; Jones, D.H.; Kariuki, B.M. (E)-2-(1,1-Dicyclohexyl-3-phenylallyl)-5,5-dimethyl-1,3,2-dioxaborinane. Acta Cryst. 2013, E69(9), o1403. https://doi.org/10.1107/S1600536813021739.
 
98– Smith, K.; El-Hiti, G.A.; Alshammari, M.B.; Fekri, A. Control of site of lithiation of 3-(aminomethyl)pyridine derivatives. Synthesis 2013, 45(24), 3426–3434. https://doi.org/10.1055/s-0033-1338547.
 
99– Alotaibi, M.H.; Smith, K.; El-Hiti, G.A. Highly regioselective process for the production of important industrial intermediates in high yields. J. Pet. Environ. Biotechnol. 2013, 4, 117. https://doi.org/10.4172/2157-7463.S1.003.
 
100– Balakit, A.A.; El-Hiti, G.A.; Smith, K. Simple and convenient procedure for the synthesis of 2-(3-(tert-butoxycarbonylamino)propyl)-5-methylthiophenes. Iraqi Natl. J. Chem. 2013(52), 466–476. http://www.iasj.net/iasj?func=fulltext&aId=83523.
 
101– Morris, C.A.; Owen, J.R.; Thomas, M.C.; El-Hiti, G.A.; Harwood, J.L.; Kille, P. Intracellular localization and induction of a dynamic RNA-editing event in response to copper of macro-algal V-ATPase subunit A (VHA-A). Plant Cell Environ. 2014, 37(1), 189–203. https://doi.org/10.1111/pce.12145.
 
102– Smith, K.; El-Hiti, G.A.; Alshammari, M.B. Directed lithiation of N¢-(2-(4-methoxyphenyl)ethyl)-N,N-dimethylurea and tert-butyl 2‑(4‑methoxyphenyl)ethylcarbamate. Synthesis 2014, 46(3), 394–402. https://doi.org/10.1055/s-0033-1338570.
 
103– Masmali, A.; Alrabiah, S.; Alharbi, A.; El-Hiti, G.A.; Almubrad, T. Investigation of tear film using the TearLabTM osmolarity system in normal adults in Saudi Arabia. Eye Contact Lens 2014, 40(2), 74–78. https://doi.org/10.1097/ICL.0000000000000002.
 
104– Smith, K.; Alotaibi, M.H.; El-Hiti, G.A. Regioselective dinitration of simple aromatics over zeolite Hb/nitric acid/acid anhydride systems. Arkivoc 2014, 2014(iv), 107–123. https://doi.org/10.3998/ark.5550190.p008.527.
 
105– El-Hiti, G.A.; Smith, K.; Balakit, A.A.; Hegazy, A.S.; Kariuki, B.M. 2,2-Dimethyl-N-(4-methylpyridin-2-yl)propanamide. Acta Cryst. 2014, E70(3), o351–o352. https://doi.org/10.1107/S1600536814003729.
 
106– El-Hiti, G.A.; Smith, K.; Hegazy, A.S.; Jones, D.H.; Kariuki, B.M. 2-Ethyl-3-[(R)-2-phenylbutanamido]-3H-quinazolin-4-one monohydrate. Acta Cryst. 2014, E70(4), o467. https://doi.org/10.1107/S1600536814005996.
 
107– Masmali, A.; Alqahtani, T.A.; Alharbi, A.; El-Hiti, G A. Comparative study of repeatability of phenol red thread test versus Schirmer's test in normal adults in Saudi Arabia. Eye Contact Lens 2014, 40(3), 127–131. https://doi.org/10.1097/ICL.0000000000000025.
 
108– Sert, Y.; Balakit, A.A.; Öztürk, N.; Ucun, F.; El-Hiti, G.A. Experimental (FT-IR, NMR and UV) and theoretical (M06-2X and DFT) investigation, and frequency estimation analyses on (E)-3-(4-bromo-5-methylthiophen-2-yl)acrylonitrile. Spectrochim. Acta A 2014, 131, 502–511. https://doi.org/10.1016/j.saa.2014.04.105.
 
109– El-Hiti, G.A.; Smith, K.; Hegazy, A.S.; Alotaibi, M.H.; Kariuki, B.M. 3-(2-Bromo-4-chlorophenyl)-1,1-dimethylthiourea. Acta Cryst. 2014, E70(6), o704. https://doi.org/10.1107/S1600536814011350.
 
110– Alshammari, M.B.; Smith, K.; Hegazy, A.S.; Kariuki, B.M.; El-Hiti, G.A. 4-Methylsulfanyl-2-phenylquinazoline. Acta Cryst. 2014, E70(8), o871. https://doi.org/10.1107/S1600536814015657.
 
111– El-Hiti, G.A.; Smith, K.; Hegazy, A.S.; Masmali, A.; Kariuki, B.M. Crystal structure of 2-tert-butyl-1,3-thiazolo[4,5-b]pyridine. Acta Cryst. 2014, E70(9), o932. https://doi.org/10.1107/S160053681401633X.
 
112– Alshammari, M.B.; Smith, K.; Hegazy, A.S.; Kariuki, B.M.; El-Hiti, G.A. Crystal structure of 2-ethyl-3H-quinazoline-4-thione. Acta Cryst. 2014, E70(9), o953. https://doi.org/10.1107/S160053681401664X.
 
113– Smith, K.; Alotaibi, M.H.; El-Hiti, G.A. Regioselective nitration of 2- and 4-nitrotoluenes over systems comprising nitric acid, an acid anhydride and a zeolite. Arkivoc 2014, 2014(v), 301–309. https://doi.org/10.3998/ark.5550190.p008.788.
 
114– El-Hiti, G.A.; Smith, K.; Hegazy, A.S.; Baashen, M.; Kariuki, B.M. Crystal structure of 4-(2,2-dimethylpropanamido)pyridin-3-yl N,N-diisopropyldithiocarbamate. Acta Cryst. 2014, E70(9), o1069–o1070. https://doi.org/10.1107/S1600536814019321.
 
115– El-Hiti, G.A.; Smith, K.; Hegazy, A.S.; Alshammari, M.B.; Kariuki, B.M. Crystal structure of 4,4-dibutyl-2-phenyl-3,4-dihydroquinazoline. Acta Cryst. 2014, E70(10), o1100. https://doi.org/10.1107/S1600536814020017.
 
116– El-Hiti, G.A.; Smith, K.; Hegazy, A.S.; Ajarim, M.D.; Kariuki, B.M. Crystal structure of 2-[4-(methylsulfanyl)-quinazolin-2-yl]-1-phenylethanol. Acta Cryst. 2014, E70(10), o1101. https://doi.org/10.1107/S1600536814019990.
 
117– Smith, K.; El-Hiti, G.A.; Al-Mansury, S.A.; Alshammari, M.B.; Balakit, A.A. Lateral lithiation and substitution of N'-(2-methylphenyl)-N,N-dimethylurea. Arkivoc 2014, 2014(v), 365–375. ttps://doi.org/10.3998/ark.5550190.0015.500.
 
118– Abdel-Megeed, M.F.; Azaam, M.M.; El-Hiti, G.A. A simple procedure for synthesis of 3H-quinazolin-4-one hydrazones under mild conditions. J. Saudi Chem. Soc. 2014, 18(6), 1022–1027. https://doi.org/10.1016/j.jscs.2011.12.009.
 
119– El-Hiti, G.A.; Smith, K.; Hegazy, A.S.; Alshammari, M.B.; Kariuki, B.M. Crystal structure of 4-methoxyquinazoline. Acta Cryst. 2014, E70(12), o1279. https://doi.org/10.1107/S1600536814025082.
 
120– El-Hiti, G.A.; Smith, K.; Hegazy, A.S.; Alshammari, M.B.; Masmali, A. Directed lithiation of simple aromatics and heterocycles: synthesis of substituted derivatives. Arkivoc, 2015 2015(iv), 19–47. https://doi.org/10.3998/ark.5550190.p008.744.
 
121– Smith, K.; Al-Zuhairi, A.J.; El-Hiti, G.A.; Alshammari, M.B. Comparison of cyclic and polymeric disulfides as catalysts for the regioselective chlorination of phenols. J. Sulfur Chem. 2015, 36(1), 74–85. https://doi.org/10.1080/17415993.2014.965170.
 
122– Saad, A.S.; El-Hiti, G.A.; Masmali, A.M. A computer-based image analysis for tear ferning featuring. J. Innov. Opt. Heal. Sci. 2015, 8(5), 1550015. https://doi.org/10.1142/S1793545815500157.
 
123– Masmali, A.M.; Al-Qhtani, S.; Al-Gasham, T.M.; El-Hiti, G.A.; Purslow, C.; Murphy, P.J. Application of a new grading scale for tear ferning in non-dry eye and dry eye subjects. Cont. Lens Anterior Eye 2015, 38(1), 39–43. https://doi.org/10.1016/j.clae.2014.09.007.
 
124– Balakit, A.A.; Ahmed, A.; El-Hiti, G.A.; Smith, K.; Yousif, E. Synthesis of new thiophene derivatives and their use as photostabilizers for rigid poly(vinyl chloride). Int. J. Polym. Sci. 2015, 2015, 510390. https://doi.org/10.1155/2015/510390.
 
125– El-Hiti, G.A.; Smith, K.; Hegazy, A.S. Directed lithiation and substitution of pyridine derivatives. Heterocycles 2015, 91(3), 479–504. https://doi.org/10.3987/REV-14-816.
 
126– El-Hiti, G.A.; Smith, K.; Hegazy, A.S.; Alanazi, S.A.; Kariuki, B.M. Crystal structure of 2,2-dimethyl-N-(pyridin-3-yl)propanamide. Acta Cryst. 2015, E71(4), o246–o247. https://doi.org/10.1107/S2056989015005289.
 
127– El-Hiti, G.A.; Smith, K.; Hegazy, A.S.; Alanazi, S.A.; Kariuki, B.M. Crystal structure of 2-(1-methylethyl)-1,3-thiazolo[4,5-b]pyridine. Acta Cryst. 2015, E71(5), o272–o273. https://doi.org/10.1107/S2056989015006039.
 
128– El-Hiti, G.A.; Smith, K.; Hegazy, A.S. Catalytic, green and regioselective Friedel-Crafts acylation of simple aromatics and heterocycles over zeolites. Curr. Org. Chem. 2015, 19(7), 585–598. https://doi.org/10.2174/1385272819666150211002257.
 
129– El-Hiti, G.A.; Smith, K.; Hegazy, A.S.; Alanazi, S.A.; Kariuki, B.M. Crystal structure of 2,2-dimethyl-N-(5-methylpyridin-2-yl)propanamide. Acta Cryst. 2015, E71(6), o419–o420. https://doi.org/10.1107/S2056989015009378.
 
130– Yousif, E.; El-Hiti, G.A.; Haddad, R.; Balakit, A.A. Photochemical stability and photostabilizng efficiency of poly(methyl methacrylate) based on 2-(6-methoxynaphthalen-2-yl)propanoate metal ions complexes. Polymers 2015, 7(6), 1005–1019. https://doi.org/10.3390/polym7061005.
 
131–El-Hiti, G.A.; Smith, K.; Hegazy, A.S.; Alanazi, S.A.; Kariuki, B.M. Crystal structure of 2-(2-methylphenyl)-1,3-thiazolo[4,5-b]pyridine. Acta Cryst. 2015, E71(8), o562–o563. https://doi.org/10.1107/S2056989015012797.
 
132– El-Hiti, G.A.; Smith, K.; Hegazy, A.S.; Alanazi, S.A.; Kariuki, B.M. Crystal structure of 3-amino-2-propylquinazolin-4(3H)-one. Acta Cryst. 2015, E71(8), o590–o591. https://doi.org/10.1107/S2056989015013134.
 
133– Jones, D.H.; Smith, K.; Elliot, M.C.; El-Hiti, G.A. Factors affecting reactions of trialkylcyanoborates with imidoyl chlorides/trifluoroacetic anhydride. Tetrahedron 2015, 71(36), 6285–6289. https://doi.org/10.1016/j.tet.2015.06.038.
 
134– El-Hiti, G.A.; Smith, K.; Hegazy, A.S.; Baashen, M.; Kariuki, B.M. Crystal structure of 3-amino-2-ethylquinazolin-4(3H)-one. Acta Cryst. 2015, E71(9), o650–o651. https://doi.org/10.1107/S2056989015014450.
 
135– Masmali, A.; AL-Bahlal, J.M.; El-Hiti, G.A.; Akhtar, S.; Purslow, C.; Murphy, P.J.; Almubrad, T. Repeatability and diurnal variation of tear ferning test. Eye Contact Lens 2015, 41(5), 262–267. https://doi.org/10.1097/ICL.0000000000000116.
 
136– El-Hiti, G.A.; Smith, K.; Hegazy, A.S.; Ajarim, M.D.; Kariuki, B.M. Crystal structure of 2-cyclohexyl-1,3-thiazolo[4,5-b]pyridine. Acta Cryst. 2015, E71(11), o866. https://doi.org/10.1107/S2056989015019106.
 
137– El-Hiti, G.A.; Smith, K.; Hegazy, A.S.; Ajarim, M.D.; Kariuki, B.M. Crystal structure of 2-(3-nitrophenyl)-1,3-thiazolo[4,5-b]pyridine. Acta Cryst. 2015, E71(11), o877. https://doi.org/10.1107/S2056989015019118.
 
138– Yousif, E.; El-Hiti, G.A.; Hussain, Z.; Altaie, A. Viscoelastic, spectroscopic and microscopic study of the photo irradiation effect on the stability of PVC in presence of sulfamethoxazole Schiff's bases. Polymers 2015, 7(11), 2190–2204. https://doi.org/10.3390/polym7111508.
 
139– Sert, Y.; Ucun, F.; El-Hiti, G.A.; Smith, K.; Hegazy, A.S. Spectroscopic investigations and DFT calculations on 3-(diacetylamino)-2-ethyl-3H-quinazolin-4-one. J. Spectrosc. 2016, 2016, 5396439. https://doi.org/10.1155/2016/5396439.
 
140– Yousif, E.; Hasan, A.; El-Hiti, G.A. Spectroscopic, physical and topography of photochemical process of PVC films in the presence of Schiff base metal complexes. Polymers 2016, 8(6), 204. https://doi.org/10.3390/polym8060204.
 
141– El-Hiti, G.A.; Smith, K.; Hegazy, A.S.; Alanazi, S.A.; Kariuki, B.M. Crystal structure of 3-tert-butyl-3-hydroxy-1,3-dihydro-2H-pyrrolo[3,2-c]pyridin-2-one, C11H14N2O2. Z. Kristallogr. – New Cryst. Struct. 2016, 231(3), 809–810. https://doi.org/10.1515/ncrs-2015-0276.
 
142– El-Hiti, G.A.; Abdel-Wahab, B.F.; Baashen, M.; Ghabbour, H.A.; Alruqi, O.S. Crystal structure of 3-(benzofuran-2-yl)-5-(4-fluorophenyl)-4,5-dihydro-1H-pyrazole-1-carbothioamide, C18H14FN3OS. Z. Kristallogr. – New Cryst. Struct. 2016, 231(3), 887–888. https://doi.org/10.1515/ncrs-2015-0304.
 
143– El-Hiti, G.A.; Abdel-Wahab, B.F.; Baashen, M.; Ghabbour, H.A. Crystal structure of 2-(3-(benzofuran-2-yl)-5-(4-fluorophenyl)-4,5-dihydro-1H-pyrazol-1-yl)-4-(4-chlorophenyl)thiazole, C26H17ClFN3OS. Z. Kristallogr. – New Cryst. Struct. 2016, 231(3), 911–912. https://doi.org/10.1515/ncrs-2016-0004.
 
144– El-Hiti, G.A.; Abdel-Wahab, B.F.; Ajarim, M.D.; Alobaid, A.M.; Ghabbour, H.A. Crystal structure of 2-(3-(benzofuran-2-yl)-5-phenyl-4,5-dihydro-1H-pyrazol-1-yl)-4-phenylthiazole, C26H19N3OS. Z. Kristallogr. – New Cryst. Struct. 2016, 231(3), 935–936. https://doi.org/10.1515/ncrs-2016-00012.
 
145– Altaee, N.; El-Hiti, G.A.; Fahdil, A.; Sudesh, K.; Yousif, E. Biodegradation of different formulations of polyhydroxybutyrate films in soil. SpringerPlus 2016, 5(1) 762. https://doi.org/10.1186/s40064-016-2480-2.
 
146– Ali, M.M.; El-Hiti, G.A.; Yousif, E. Photostabilizing efficiency of poly(vinyl chloride) in the presence of organotin(IV) complexes as photostabilizers. Molecules 2016, 21(9), 1151. https://doi.org/10.3390/molecules21091151.
 
147– El-Hiti, G.A.; Abdel-Wahab, B.F.; Baashen, M.; Ghabbour, H.A. Crystal structure of ethyl 5-amino-3-(methylthio)-1-(1-phenyl-5-(thiophen-2-yl)-1H-pyrazole-3-carbonyl)-1H-pyrazole-4-carboxylate, C21H19N5O3S2. Z. Kristallogr. – New Cryst. Struct. 2016, 231(4), 1051–1052. https://doi.org/10.1515/ncrs-2016-0046.
 
148– El-Hiti, G.A.; Smith, K.; Alshammari, M.B.; Alotaibi, M.H.; Kariuki, B.M. Crystal structure of 1,1-dimethyl-3-(2-phenylethyl)urea, C11H16N2O. Z. Kristallogr. – New Cryst. Struct. 2016, 231(4), 1065–1066. https://doi.org/10.1515/ncrs-2016-0052.
 
149– El-Hiti, G.A.; Smith, K.; Hegazy, A.S.; Alanazi, S.A.; Kariuki, B.M. Crystal structure of 2-(4-methoxyphenyl)-1,3-thiazolo[4,5-b]pyridine, C13H10N2OS. Z. Kristallogr. – New Cryst. Struct. 2016, 231(4), 1067–1068. https://doi.org/10.1515/ncrs-2016-0053.
 
150– El-Hiti, G.A.; Smith, K.; Hegazy, A.S.; Masmali, A.M.; Kariuki, B.M. Crystal structure of 3-tert-butyl-7-azadioxindole, C11H14N2O2. Z. Kristallogr. – New Cryst. Struct. 2016, 231(4), 1069–1070. https://doi.org/10.1515/ncrs-2016-0054.
 
151– Ghabbour, H.A.; Abdel-Wahab, B.F.; Baashen, M.; Asmari, M.M.; El-Hiti, G.A. Crystal structure of 3-(4-bromophenyl)-5-(4-fluorophenyl)-4,5-dihydro-1Hpyrazole-1-carbothioamide, C16H13BrFN3S. Z. Kristallogr. – New Cryst. Struct. 2016, 231(4), 1073–1074. https://doi.org/10.1515/ncrs-2016-0057.
 
152– El-Hiti, G.A.; Smith, K.; Alshammari, M.B.; Ajarim, M.D.; Kariuki, B.M. Crystal structure of tert-butyl 2-phenylethylcarbamate, C13H19NO2. Z. Kristallogr. – New Cryst. Struct. 2016, 231(4), 1105–1107. https://doi.org/10.1515/ncrs-2016-0077.
 
153– El-Hiti, G.A.; Abdel-Wahab, B.F.; Baashen, M.; Hegazy, A.S.; Kariuki, B.M. Crystal structure of (Z)-4-((E)-(4-chlorobenzylidene)hydrazono)-1-p-tolylpyrrolidine-3-carbonitrile, C19H17ClN4. Z. Kristallogr. – New Cryst. Struct. 2016, 231(4), 1109–1110. https://doi.org/10.1515/ncrs-2016-0079.
 
154– El-Hiti, G.A.; Abdel-Wahab, B.F.; Alamri, M.; Al-Omar, M.A.; Ghabbour, H.A. Crystal structure of 5-(2-chloro-5-nitrophenyl)-3-(4-chlorophenyl)-N-ethyl-4,5-dihydro-1H-pyrazole-1-carbothioamide, C18H16Cl2N4O2S. Z. Kristallogr. – New Cryst. Struct. 2016, 231(4), 1169–1170. https://doi.org/10.1515/ncrs-2016-0109.
 
155– El-Hiti, G.A.; Abdel-Wahab, B.F.; Hegazy, A.S.; Ajarim, M.D.; Kariuki, B.M. Crystal structure of 4-(benzofuran-2-yl)-2-(3-(4-fluorophenyl)-3,3a,4,5-tetrahydro-2H-benzo[g]indazol-2-yl)thiazole, C28H20FN3OS. Z. Kristallogr. – New Cryst. Struct. 2016, 231(4), 1171–1173. https://doi.org/10.1515/ncrs-2016-0113.
 
156– Saleh, B.A; Smith, K.; Elliott, M.C.; Jones, D.H.; Kariuki, B.M.; El-Hiti, G.A. Reactions of organoboranes with carbanions bearing three potential leaving groups: unusual processes, products and mechanisms. Tetrahedron 2016, 72(44), 6914–6928. https://doi.org/10.1016/j.tet.2016.09.005.
 
157– Baashen, M.; Abdel-Wahab, B.F.; El-Hiti, G.A. Syntheses of triazoloquinoxalines. Heterocycles 2016, 92(11), 1931–1952. https://doi.org/10.3987/REV-16-847.
 
158– Masmali, A.M.; Al-Shehri, A.; Alanazi, S.A.; Abusharaha, A.; Fagehi, R.; El-Hiti, G.A. Assessment of tear film quality among smokers using tear ferning patterns. J. Ophthalmol. 2016, 2016, 8154315. https://doi.org/10.1155/2016/8154315.
 
159– Ali, G.Q.; El-Hiti, G.A.; Tomi, I.H.R.; Haddad, R.; Al-Qaisi, A.J.; Yousif. E. Photostability and performance of polystyrene films containing 1,2,4-triazole-3-thiol ring system Schiff bases. Molecules 2016, 21(12), 1699. https://doi.org/10.3390/molecules21121699.
 
160– Hussain, Z.; El-Hiti, G.A.; Ahmed, A.; Altaee, N.; Yousif, E. Photocatalytic degradation of polyhydroxybutyrate films using titanium dioxide nanoparticles as a photocatalyst. Russ. J. Appl. Chem. 2016, 89(9), 1536–1543. https://doi.org/10.1134/S1070427216090238.
 
161– El-Hiti, G.A.; Abdel-Wahab, B.F.; Hegazy, A.S.; Alamri, M.; Kariuki, B.M. Crystal structure of 2-((3-(5-methyl-1-phenyl-1H-1,2,3-triazol-4-yl)-1-phenyl-1H-pyrazol-4-yl)methylene)-1H-indene-1,3(2H)-dione, C28H19N5O2. Z. Kristallogr. – New Cryst. Struct. 2017, 232(1), 19–20. https://doi.org/10.1515/ncrs-2016-0108.
 
162– Ghabbour, H.A.; Abdel-Wahab, B.F.; Alamri, M.; Al-Omar, M.A.; El-Hiti, G.A. Crystal structure of 2-(5-(4-fluorophenyl)-3-p-tolyl-4,5-dihydro-1H-pyrazol-1-yl)-4-(5-methyl-1-p-tolyl-1H-1,2,3-triazol-4-yl)thiazole, C29H25FN6S. Z. Kristallogr. – New Cryst. Struct. 2017, 232(1), 21–23. https://doi.org/10.1515/ncrs-2016-0110.
 
163– El-Hiti, G.A.; Smith, K.; Hegazy, A.S.; Alotaibi, M.H.; Kariuki, B.M. Crystal structure of 3-(2-bromophenyl)-1,1-dimethylthiourea, C9H11BrN2S. Z. Kristallogr. – New Cryst. Struct. 2017, 232(1), 31–32. https://doi.org/10.1515/ncrs-2016-0116.
 
164– Alshammari, M.B.; Smith, K.; Hegazy, A.S.; Kariuki, B.M.; El-Hiti, G.A. Crystal structure of 3-(2-(4-chlorophenyl)-3-hydroxy-3,3-diphenylpropyl)-1,1-dimethylurea, C24H25ClN2O2. Z. Kristallogr. – New Cryst. Struct. 2017, 232(1), 101–103. https://doi.org/10.1515/ncrs-2016-0170.
 
165– El-Hiti, G.A.; Smith, K.; Alshammari, M.B.; Hegazy, A.S.; Kariuki, B.M. Crystal structure of 3-(4-chlorophenyl)-1,1-dimethylthiourea, C9H11ClN2S. Z. Kristallogr. – New Cryst. Struct. 2017, 232(1), 105–107. https://doi.org/10.1515/ncrs-2016-0171.
 
166– El-Hiti, G.A.; Abdel-Wahab, B.F.; Baashen, M.; Hegazy, A.S.; Kariuki, B.M. Crystal structure of (E)-5-((4-chlorophenyl)diazenyl)-2-(5-(4-fluorophenyl)-3-(thiophen-2-yl)-4,5-dihydro-1H-pyrazol-1-yl)-4-methylthiazole, C23H17ClFN5S2. Z. Kristallogr. – New Cryst. Struct. 2017, 232(1), 157–158. https://doi.org/10.1515/ncrs-2016-0208.
 
167– Morris, C.A.; El-Hiti, G.A.; Weeks, I.; Woodhead, S.; Smith, K.; Kille, P. Quantitative analysis of gene expression changes in response to genotoxic compounds. Toxicol. In Vitro 2017, 39, 15–28. https://doi.org/10.1016/j.tiv.2016.11.004.
 
168– Kariuki, M.B.; El-Hiti, G.A. A reversible single-crystal to single-crystal thermal phase transformation of 3-(2-bromo-4-(1-methylethyl)phenyl)-1,1-dimethylurea. Crystals 2017, 7(3), 75. https://doi.org/10.3390/cryst7030075.
 
169– El-Hiti, G.A.; Smith, K.; Alshammari, M.B.; Hegazy, A.S.; Kariuki, B.M. Crystal structure of 1,1-dimethyl-3-(4-methoxyphenyl)urea, C10H14N2O2. Z. Kristallogr. – New Cryst. Struct. 2017, 232(2), 279–281. https://doi.org/10.1515/ncrs-2016-0238.
 
170– El-Hiti, G.A.; Abdel-Wahab, B.F.; Alshammari, M.B.; Hegazy, A.S.; Kariuki, B.M. Crystal structure of (E)-3-methyl-4-((3-(5-methyl-1-phenyl-1H-1,2,3-triazol-4-yl)-1-phenyl-1H-pyrazol-4-yl)methylene)-1-phenyl-1H-pyrazol-5(4H)-one, C29H23N7O. Z. Kristallogr. – New Cryst. Struct. 2017, 232(2), 291–293. https://doi.org/10.1515/ncrs-2016-0243.
 
171– El-Hiti, G.A.; Abdel-Wahab, B.F.; Baashen, M.; Hegazy, A.S.; Kariuki, B.M. Crystal structure of 3-(5-methyl-1-p-tolyl-1H-1,2,3-triazol-4-yl)-1-phenyl-1H-pyrazole-4-carbaldehyde, a rare Z' =3 structure, C20H17N5O. Z. Kristallogr. – New Cryst. Struct. 2017, 232(2), 313–315. https://doi.org/10.1515/ncrs-2016-0258.
 
172– El-Hiti, G.A.; Abdel-Wahab, B.F.; Hegazy, A.S.; Kariuki, B.M. Crystal structure of 5-(5-(4-chlorophenyl)-1-phenyl-1H-pyrazol-3-yl)-N-phenyl-1,3,4-thiadiazol-2-amine, C23H16ClN5S. Z. Kristallogr. – New Cryst. Struct. 2017, 232(2), 317–319. https://doi.org/10.1515/ncrs-2016-0259.
 
173– Hussien, N.J.; Yusoff, S.F.M.; El-Hiti, G.A.; Farina, Y.; Al-Jeboori, M.J.; Yousif, E. Crystal structure of 1-(4,4-dimethyl-2,6-dithioxo-1,3,5-triazinan-1-yl)-3-(diethylaminocarbonyl)thiourea, C11H20N6OS3. Z. Kristallogr. – New Cryst. Struct. 2017, 232(2), 325–326. https://doi.org/10.1515/ncrs-2016-0265.
 
174– El-Hiti, G.A.; Smith, K.; Hegazy, A.S.; Kariuki, B.M. Crystal structure of 1,1-dimethyl-3-(4-methylphenyl)urea, C10H14N2O. Z. Kristallogr. – New Cryst. Struct. 2017, 232(2), 329–330. https://doi.org/10.1515/ncrs-2016-0290.
 
175– El-Hiti, G.A.; Smith, K.; Alamri, M.; Morris, C.A.; Kariuki, B.M.; Kille, P. Crystal structure of 2-(bis(4-methoxyphenyl)amino)-2-oxoacetic acid, C16H15NO5. Z. Kristallogr. – New Cryst. Struct. 2017, 232(2), 333–335. https://doi.org/10.1515/ncrs-2016-0325.
 
176– Hassan, F.; El-Hiti, G.A.; Abd-Allateef, M.; Yousif, E. Cytotoxicity anticancer activities of anastrozole against breast, liver hepatocellular and prostate cancer cells. Saudi Med. J. 2017, 38(4), 359–365. https://doi.org/10.15537/smj.2017.4.17061.
 
177– Mohamed, H.A.; Abdel-Wahab, B.F.; El-Hiti, G.A. Synthesis of some novel thiophene and thiazole derivatives and their antimicrobial evaluation. Heterocycles 2017, 94(4), 716–726. https://doi.org/10.3987/COM-17-13668.
 
178– El-Hiti, G.A.; Abdel-Wahab, B.F.; Hegazy, A.S.; Kariuki, B.M. Crystal structure of (E)-2-(5-(4-fluorophenyl)-3-(furan-2-yl)-4,5-dihydro-1H-pyrazol-1-yl)-5-((4-fluorophenyl)diazenyl)-4-methylthiazole, C23H17F2N5OS. Z. Kristallogr. – New Cryst. Struct. 2017, 232(3), 413–415. https://doi.org/10.1515/ncrs-2016-0293.
 
179– Altaee, N.; El-Hiti, G.A.; Fahdil, A.; Sudesh, K.; Yousif, E. Screening and evaluation of poly(3-hydroxybutyrate) with Rhodococcus equi using different carbon sources. Arab. J. Sci. Eng. 2017, 42(6), 2371–2379. https://doi.org/10.1007/s13369-016-2327-8.
 
180– Abdel-Wahab, B.F.; Khidre, R.E.; Mohamed, H.A.; El-Hiti, G.A. A simple process for the synthesis of novel pyrazolyltriazole and dihydropyrazolylthiazole derivatives as antimicrobial agents. Arab. J. Sci. Eng. 2017, 42(6), 2441–2448. https://doi.org/10.1007/s13369-017-2530-2.
 
181– Ahmed, D.S.; El-Hiti, G.A.; Yousif, E.; Hameed, A.S.; Abdalla, M. New eco-friendly phosphorus organic polymers as gas storage media. Polymers 2017, 9(8), 336. https://doi.org/10.3390/polym9080336.
 
182– Abdel-Wahab, B.F.; Alotaibi, M.H.; El-Hiti, G.A. Synthesis of new symmetrical N,N'-diacylhydrazines and 2-(1,2,3-triazol-4-yl)-1,3,4-oxadiazoles. Lett. Org. Chem. 2017, 14(8), 591–596. https://doi.org/10.2174/1570178614666170524130223.
 
183– Mohammed, R.; El-Hiti, G.A.; Ahmed, A.; Yousif, E. Poly(vinyl chloride) doped by 2-(4-isobutylphenyl)propanoate metal complexes: enhanced resistance to UV irradiation. Arab. J. Sci. Eng. 2017, 42(10), 4307–4315. https://doi.org/10.1007/s13369-016-2323-z.
 
184– Ahmed, D.S.; El-Hiti, G.A.; Hameed, A.S.; Yousif, E.; Ahmed, A. New tetra-Schiff bases as efficient photostabilizers for poly(vinyl chloride). Molecules 2017, 22(9), 1506. https://doi.org/10.3390/molecules22091506.
 
185– Ali, M.M.; El-Hiti, G.A.; Yousif, E. Investigation of the photodecomposition rate constant of poly(vinyl chloride) films containing organotin(IV) complexes. Al-Nahrain J. Sci. 2017, 20(3), 18–23. https://doi.org/10.22401/JUNS.20.3.04.
 
186– Abdel-Wahab, B.F.; Farahat, A.A.; Awad, G.E.A.; El-Hiti, G.A. Synthesis and antimicrobial activity of some novel substituted 3-(thiophen-2-yl)pyrazole-based heterocycles. Lett. Drug Des. Discov. 2017, 14(11), 1316–1323. https://doi.org/10.2174/1570180814666170327162447.
 
187– Baashen, M.A.; Abdel-Wahab, B.F.; El-Hiti, G.A. A simple procedure for the synthesis of novel 3-(benzofur-2-yl)pyrazole-based heterocycles. Chem. Pap. 2017, 71(11), 2159–2166. https://doi.org/10.1007/s11696-017-0209-5.
 
188– Ahmed, D.S.; El-Hiti, G.A.; Yousif, E.; Hameed, A.S. Polyphosphates as inhibitors for poly(vinyl chloride) photodegradation. Molecules 2017, 22(11), 1849. https://doi.org/10.3390/molecules22111849.
 
189– Yousif, E.; Haddad, R.; El-Hiti, G.A.; Yusop, R.M. Spectroscopic and photochemical stability of polystyrene films in the presence of metal complexes. J. Taibah Univ. Sci. 2017, 11(6), 997–1007. https://doi.org/10.1016/j.jtusci.2017.03.002.
 
190– Balakit, A.A.; Sert, Y.; Çırak, Ç.; Smith, K.; El-Hiti, G.A. Synthesis, spectroscopic (FT-IR and Laser-Raman) and theoretical DFT simulations of 3-bromo-2-methyl-5-(4-nitrophenyl)thiophene. J. Appl. Spectrosc. 2017, 84(5), 888–899. https://doi.org/10.1007/s10812-017-0561-9.
 
191– Abu El-Enin, M.A.B.; Abdel-Wahab, B.F.; Baashen, M.; Ghabbour, H.A.; El-Hiti, G.A. (E)-1-[5-Methyl-1-(p-tolyl)-1H-1,2,3-triazol-4-yl]-3-{3-[5-methyl-1-(p-tolyl)-1H-1,2,3-triazol-4-yl]-1-phenyl-1H-pyrazol-4-yl}prop-2-en-1-one. IUCrData 2017, 2, x171729. https://doi.org/10.1107/S2414314617017291.
 
192– El-Hiti, G.A.; Abdel-Wahab, B.F.; Alotaibi, H.A.; Hegazy, A.S.; Kariuki, B.M. 1-[5-Methyl-1-(4-methylphenyl)-1H-1,2,3-triazol-4-yl]ethanones. IUCrData 2017, 2, x171782. https://doi.org/10.1107/S2414314617017825.
 
193– El-Hiti, G.A.; Abdel-Wahab, B.F.; Alotaibi, H.A.; Hegazy, A.S.; Kariuki, B.M. Methyl 5-(benzofuran-2-yl)isoxazole-3-carboxylate. IUCrData 2017, 2, x171820. https://doi.org/10.1107/S241431461701820X.
 
194– Kamil, A.M.; Mohammed, H.T.; Balakit, A.A.; Hussein, F.H.; Bahnemann, D.W.; El-Hiti, G.A. Synthesis, characterization and photocatalytic activity of carbon nanotube/titanium dioxide nanocomposites. Arab. J. Sci. Eng. 2018, 43(1), 199–210. https://doi.org/10.1007/s13369-017-2861-z.
 
195– El-Hiti, G.A.; Mohamed, H.A.; Abdel-Wahab, B.F.; Alotaibi, M.H.; Hegazy, A.S.; Kariuki, B.M. Ethyl 1-phenyl-1,4-dihydroindeno[1,2-c]pyrazole-3-carboxylate. IUCrData 2018, 3(1), x171840. https://doi.org/10.1107/S2414314617018405.
 
196– El-Hiti, G.A.; Abdel-Wahab, B.F.; Alotaibi, M.H.; Hegazy, A.S.; Kariuki, B.M. (E)-3-(4-Fluorophenyl)-1-[1-(4-fluorophenyl)-5-methyl-1H-1,2,3-triazol-4-yl]prop-2-en-1-one. IUCrData 2018, 3(1), x171841. https://doi.org/10.1107/S2414314617018417.
 
197– El-Hiti, G.A.; Mohamed. H.M.; Abdel-Wahab, B.F.; Alotaibi, M.H.; Hegazy, A.S.; Kariuki, B.M. Ethyl (Z)-2-[2-(4-methylphenyl)hydrazin-1-ylidene]-3-oxo-3-(thiazol-2-ylamino)propanoate. IUCrData 2018, 3(1), x171852. https://doi.org/10.1107/S2414314617018521.
 
198– El-Hiti, G.A.; Smith, K.; Hegazy, A.S.; Alshammari, M.B.; Kariuki, B.M. S-[2-(2,2-Dimethylpropanamido)-3-(trifluoromethyl)phenyl] N,N-diisopropyldithiocarbamate. IUCrData 2018, 3(1), x180029. https://doi.org/10.1107/S2414314618000299.
 
199– El-Hiti, G.A.; Mohamed, H.A.; Abdel-Wahab, B.F.; Alotaibi, M.H.; Hegazy, A.S.; Kariuki, B.M. 4-(4-Bromophenyl)-2-(3-(4-chlorophenyl)-5-{3-[5-methyl-1-(4-methylphenyl)-1H-1,2,3-triazol-4-yl]-1-phenyl-1H-pyrazol-4-yl}-4,5-dihydro-1H-pyrazol-1-yl)thiazole. IUCrData 2018, 3(1), x180036. https://doi.org/10.1107/S2414314618000366.
 
200– El-Hiti, G.A.; Smith, K.; Hegazy, A.S.; Alshammari, M.B.; Kariuki, B.M. 1,1-Dimethyl-3-[4-(trifluoromethyl)phenyl]urea. IUCrData 2018, 3(1), x180040. https://doi.org/10.1107/S2414314618000408.
 
201– El-Hiti, G.A.; Smith, K.; Hegazy, A.S.; Alshammari, M.B. Kariuki, B.M. 1-(2-Bromo-4-methylphenyl)-3,3-dimethylthiourea. IUCrData 2018, 3(1), x180045. https://doi.org/10.1107/S2414314618000457.
 
202– El-Hiti, G.A.; Smith, K.; Hegazy, A.S.; Alshammari, M.B.; Kariuki, B.M. Methyl N-(2-bromo-4-chlorophenyl)carbamate. IUCrData 2018, 3(1), x180054. https://doi.org/10.1107/S2414314618000548.
 
203– El-Hiti, G.A.; Abdel-Wahab, B.F.; Alotaibi, M.H.; Hegazy, A.S.; Kariuki, B.M. (E)-1-(4-Bromophenyl)-3-[3-(5-methyl-1-phenyl-1H-1,2,3-triazol-4-yl)-1-phenyl-1H-pyrazol-4-yl]-prop-2-en-1-one. IUCrData 2018, 3(1), x180069. https://doi.org/10.1107/S241431461800069X.
 
204– El-Hiti, G.A.; Abdel-Wahab, B.F.; Alotaibi, M.H.; Hegazy, A.S.; Kariuki, B.M. 2-({6-[5-Methyl-1-(4-methylphenyl)-1H-1,2,3-triazol-4-yl]imidazo[2,1-b]thiazol-5-yl}methylidene)hydrazinecarbothioamide dimethylformamide 0.25-solvate. IUCrData 2018, 3(1), x180087. https://doi.org/10.1107/S2414314618000871.
 
205– Ghazi, D.; El-Hiti, G.A.; Yousif, E.; Ahmed, D.S.; Alotaibi, M.H. The effect of ultraviolet irradiation on the physicochemical properties of poly(vinyl chloride) films containing organotin(IV) complexes as photostabilizers. Molecules 2018, 23(2), 254. https://doi.org/10.3390/molecules23020254.
 
206– El-Hiti, G.A.; Abdel-Wahab, B.F.; Alotaibi, M.H.; Hegazy, A.S.; Kariuki, B.M. (E)-2-Benzoyl-3-[1-phenyl-3-(thiophen-2-yl)-1H-pyrazol-4-yl]acrylonitrile. IUCrData 2018, 3(1), x180171. https://doi.org/10.1107/S2414314618001712.
 
207– Hassan, F.; Mohammed, G.; El-Hiti, G.A.; Alshanon, A.; Yousif, E. Cytotoxic effect of tamoxifen in breast cancer cells. J. Unexplored Med. Data 2018, 3, 3. https://doi.org/10.20517/2572-8180.2017.25.
 
208– Ahmed, D.S.; El-Hiti, G.A.; Yousif, E.; Ali, A.A.; Hameed, A.S. Design and synthesis of porous polymeric materials and their applications in gas capture and storage: a review. J. Polym. Res. 2018, 25(3), 75. https://doi.org/10.1007/s10965-018-1474-x.
 
209– Balakit, A.A.; Smith, K.; El-Hiti, G.A. Synthesis and characterization of a new photochromic alkylene sulfide derivative. J. Sulfur Chem. 2018, 39(2), 182–192. https://doi.org/10.1080/17415993.2017.1413651.
 
210– El-Hiti, G.A.; Abdel-Wahab, B.F.; Khidre, R.E.; Mostafa, M.S.; Hegazy, A.S.; Kariuki, B.M. 1-{2-Anilino-4-methyl-5-[5-methyl-1-(4-methylphenyl)-1H-1,2,3-triazole-4-carbonyl]thiophen-3-yl}ethanone. IUCrData 2018, 3(3), x180402. https://doi.org/10.1107/S2414314618004029.
 
211– El-Hiti, G.A.; Abdel-Wahab, B.F.; Mostafa, M.S.; Khidre, R.E.; Hegazy, A.S.; Kariuki, B.M. 5-Methyl-N'-(5-methyl-1-phenyl-1H-1,2,3-triazole-4-carbonyl)-1-phenyl-1H-1,2,3-triazole-4-carbohydrazide. IUCrData 2018, 3(3), x180424. https://doi.org/10.1107/S2414314618004248.
 
212– El-Hiti, G.A.; Smith, K.; Alamri, M.; Morris, C.A.; Kille, P.; Kariuki, B.M. 5-Bromo-1-(4-bromophenyl)isatin. IUCrData 2018, 3(3), x180426. https://doi.org/10.1107/S2414314618004261.
 
213– El-Hiti, G.A.; Abdel-Wahab, B.F.; Khidre, R.E.; Mostafa, M.S.; Hegazy, A.S.; Kariuki, B.M. 4-(4-Bromophenyl)-2-(3-(4-chlorophenyl)-5-{3-[5-methyl-1-(4-methylphenyl)-1H-1,2,3-triazol-4-yl]-1-phenyl-1H-pyrazol-4-yl}-4,5-dihydro-1H-pyrazol-1-yl)-1,3-thiazole. IUCrData 2018, 3(3), x180443. https://doi.org/10.1107/S2414314618004431.
 
214– El-Hiti, G.A.; Abdel-Wahab, B.F.; Khidre, R.E.; Mostafa, M.S.; Hegazy, A.S.; Kariuki, B.M. 4-(4-Bromophenyl)-2-(3-(4-bromophenyl)-5-{3-[5-methyl-1-(4-methylphenyl)-1H-1,2,3-triazol-4-yl]-1-phenyl-1H-pyrazol-4-yl}-4,5-dihydro-1H-pyrazol-1-yl)-1,3-thiazole. IUCrData 2018, 3(3), x180449. https://doi.org/10.1107/S2414314618004492.
 
215– Baashen, M.; Abdel-Wahab, B.F.; El-Hiti, G.A. Synthetic profiles to pyrazolylquinoxalines. Chem. Heterocycl. Compd. 2018, 54(2), 114–121. https://doi.org/10.1007/s10593-018-2241-y.
 
216– Shaalan, N.;‎‏ Laftah, N.; El-Hiti, G.A.; Alotaibi, M.H.; Muslih, R.; Ahmed, D.S.; Yousif, E. Poly(vinyl chloride) photostabilization in the presence of Schiff bases containing a thiadiazole moiety. Molecules 2018, 23(4), 913. https://doi.org/10.3390/molecules23040913.
 
217– Ahmed, D.S.; El-Hiti, G.A.; Hashim, H.; Noaman, R.; Hameed, A.S.; Yousif, E. Physical and morphological properties of poly(vinyl chloride) films upon irradiation in the presence of tetra Schiff bases as photostabilizers. Arab J. Phys. Chem. 2018, 5(1), 1–6. https://doi.org/http://aphyschem.org/index.php/article/7574041.
 
218– Abdel-Wahab, B.F.; Shaaban, S.; El-Hiti, G.A. Synthesis of sulfur-containing heterocycles via ring enlargement. Mol. Divers. 2018, 22(2), 517–542. https://doi.org/10.1007/s11030-017-9810-3.
 
219– El-Hiti, G.A.; Abdel-Wahab, B.F.; Mostafa, M.S.; Khidre, R.E.; Hegazy, A.S.; Kariuki, B.M. (E)-1-[5-Methyl-1-(4-methylphenyl)-1H-1,2,3-triazol-4-yl]-3-(4-nitrophenyl)prop-2-en-1-one. IUCrData 2018, 3(6), x180841. https://doi.org/10.1107/S2414314618008416.
 
220– Baashen, M.; Abdel-Wahab, B.F.; Hegazy, A.S.; Kariuki, B.M.; El-Hiti, G.A. Crystal structure of 1-phenyl-N'-(1-phenyl-5-(thiophen-2-yl)-1H-pyrazole-3-carbonyl)-5-(thiophen-2-yl)-1H-pyrazole-3-carbohydrazide, C28H20N6O2S2. Z. Kristallogr. – New Cryst. Struct. 2018, 233(4), 617–619. https://doi.org/10.1515/ncrs-2017-0375.
 
221– Alotaibi, M.H.; Mohamed, H.A.; Abdel-Wahab, B.F.; Abu El-Enin, M.A.B.; Ghabbour, H.A.; El-Hiti, G.A. Crystal structure of (E)-3-(3-(5-methyl-1-4-tolyl-1H-1,2,3-triazol-4-yl)-1-phenyl-1H-pyrazol-4-yl)-1-(5-methyl-1-phenyl-1H-1,2,3-triazol-4-yl)prop-2-en-1-one, C31H26N8O. Z. Kristallogr. – New Cryst. Struct. 2018, 233(4), 647–648. https://doi.org/10.1515/ncrs-2017-0420.
 
222– Geesi, M.H.; Mohamed, H.A.; Abdel-Wahab, B.F.; Hegazy, A.S.; Kariuki, B.M.; El-Hiti, G.A. Crystal structure of ethyl 4-amino-5-(5-methyl-1-(4-tolyl)-1H-1,2,3-triazole-4-carbonyl)-2-(phenylamino)thiophene-3-carboxylate, C24H23N5O3S. Z. Kristallogr. – New Cryst. Struct. 2018, 233(4), 673–674. https://doi.org/10.1515/ncrs-2018-0002.
 
223– El-Hiti, G.A.; Abdel-Wahab, B.F.; Mostafa, M.S.; Khidre, R.E.; Hegazy, A.S.; Kariuki, B.M. 2-(5-Methyl-1-phenyl-1H-1,2,3-triazol-4-yl)-5-phenyl-1,3,4-oxadiazole. IUCrData 2018, 3(7), x180966. https://doi.org/10.1107/S2414314618009665.
 
224– El-Hiti, G.A.; Abdel-Wahab, B.F.; Alotaibi, M.H.; Yousif, E.; Hegazy, A.S.; Kariuki, B.M. Ethyl 2-anilino-4-methyl-5-[5-methyl-1-(4-methylphenyl)-1H-1,2,3-triazole-4-carbonyl]thiophene-3-carboxylate. IUCrData 2018, 3(8), x181106. https://doi.org/10.1107/S2414314618011069.
 
225– El-Hiti, G.A.; Abdel-Wahab, B.F.; Alotaibi, M.H.; Yousif, E.; Hegazy, A.S.; Kariuki, B.M. Sodium 1-(4-chlorophenyl)-5-methyl-1H-1,2,3-triazole-4-carboxylate. IUCrData 2018, 3(8), x181127. https://doi.org/10.1107/S2414314618011276.
 
226– Hashim, H.; El-Hiti, G.A.; Alotaibi, M.H.; Ahmed, D.S.; Yousif, E. Fabrication of ordered honeycomb porous poly(vinyl chloride) thin film doped with a Schiff base and nickel(II) chloride. Heliyon 2018, 4(8), e00743. https://doi.org/10.1016/j.heliyon.2018.e00743.
 
227– El-Hiti, G.A.; Abdel-Wahab, B.F.; Alotaibi, M.H.; Yousif, E.; Hegazy, A.S.; Kariuki, B.M. 5-Methyl-1-(4-methylphenyl)-N'-[1-(1H-pyrrol-2-yl)ethylidene]-1H-1,2,3-triazole-4-carbohydrazide monohydrate. IUCrData 2018, 3(8), x181162. https://doi.org/10.1107/S2414314618011628.
 
228– Smith, K.; Alshammari, M.B.; El-Hiti, G.A. Unravelling factors affecting directed lithiation of acylamino aromatics. Synthesis 2018, 50(18), 3634–3652. https://doi.org/10.1055/s-0036-1591954.
 
229– El-Hiti, G.A.; Abdel-Wahab, B.F.; Alotaibi, M.H.; E. Yousif, Hegazy, A.S.; Kariuki, B.M. 5-[(4-Bromophenyl)diazenyl]-2-{2-[1-(1H-indol-3-yl)ethylidene]hydrazinyl}-4-methylthiazole dimethylformamide hemisolvate. IUCrData 2018, 3(10), x181378. https://doi.org/10.1107/S2414314618013780.
 
230– El-Hiti, G.A.; Abdel-Wahab, B.F.; Alotaibi, M.H.; Yousif, E.; Hegazy, A.S.; Kariuki, B.M. 5-Methyl-1-(4-methylphenyl)-N'-[1-(thiophen-2-yl)ethylidene]-1H-1,2,3-triazole-4-carbohydrazide. IUCrData 2018, 3(10), x181379. https://doi.org/10.1107/S2414314618013792.
 
231– Yousif, E.; Ahmed, D.S.; El-Hiti, G.A.; Alotaibi, M.H.; Hashim, H.; Hameed, A.S.; Ahmed, A. Fabrication of novel ball-like polystyrene films containing Schiff bases microspheres as photostabilizers. Polymers 2018, 10(11), 1185. https://doi.org/10.3390/polym10111185.
 
232– Smith, K.; Al-Zuhairi, A.J.; Elliot, M.C.; El-Hiti, G.A. Regioselective synthesis of important chlorophenols in the presence of methylthioalkanes with remote SMe, OMe or OH substituents. J. Sulfur Chem. 2018, 39(6), 607–621. https://doi.org/10.1080/17415993.2018.1493111.
 
233– Masmali, A.M.; Maeni, Y.A.; El-Hiti, G.A.; Murphy, P.J.; Almubrad, T. Investigation of ocular tear ferning in controlled and uncontrolled diabetic subjects. Eye Contact Lens 2018, 44(S2), S70–S75. https://doi.org/10.1097/ICL.0000000000000419.
 
234– Alotaibi, M.H.; Mohamed, H.A.; Abdel-Wahab, B.F.; Hegazy, A.S.; Kariuki, B.M.; El-Hiti, G.A. Synthesis and structure elucidation of N'-(4-methoxybenzylidene)-5-methyl-1-phenyl-1H-1,2,3-triazole-4-carbohydrazide. Molbank 2018, 2018(4), M1034. https://doi.org/10.3390/M1034.
 
235– Alotaibi, M.H.; El-Hiti, G.A.; Hashim, H.; Hameed, A.S.; Ahmed, D.S.; Yousif, E. SEM analysis of the tunable honeycomb structure of irradiated poly(vinyl chloride) films doped with polyphosphate. Heliyon 2018, 4(12), e01013. https://doi.org/10.1016/j.heliyon.2018.e01013.
 
236– Mohamed, H.A.; Alshammari, M.B.; El-Hiti, G.A. Synthesis of new 6-(1H-1,2,3-triazol-4-yl)-5-(1-(thiazol-2-yl)-4,5-dihydro-1H-pyrazol-5-yl)imidazo[2,1-b]thiazoles. Indian J. Heterocycl. Chem. 2018, 28(4), 529–533. http://publishatcj.com/Files/4453_20190114090407454_FTypeset_12_IJHC-3646_5_529-533.pdf.
 
237– Abusharaha, A.; Alturki, A.A.; Alanazi, S.A.; Fagehi, R.; Al-Johani, N.; El-Hiti, G.A.; Masmali, A.M. Assessment of tear-evaporation rate in thyroid-gland patients. Clin. Ophthalmol. 2019, 13, 131–135. https://doi.org/10.2147/OPTH.S188614.
 
238– El-Hiti, G.A.; Abdel-Wahab, B.F.; Yousif, E.; Alotaibi, M.H.; Hegazy, A.S.; Kariuki, B.M. 5-[5-(4-Chlorophenyl)isoxazol-3-yl]-N-phenyl-1,3,4-oxadiazol-2-amine. IUCrData 2019, 4(2), x190136. https://doi.org/10.1107/S2414314619001366.
 
239– El-Hiti, G.A.; Abdel-Wahab, B.F.; Yousif, E.; Alotaibi, M.H.; Hegazy, A.S.; Kariuki, B.M. N'-[5-Acetyl-3-(4-chlorophenyl)-2,3-dihydro-1,3,4-thiadiazol-2-ylidene]-5(1H-indol-3-yl)-1-phenyl-1H-pyrazole-3-carbohydrazide dimethylformamide monosolvate. IUCrData 2019, 4(2), x190148. https://doi.org/10.1107/S2414314619001482.
 
240– El-Hiti, G.A.; Abdel-Wahab, B.F.; Alqahtani, A.; Hegazy, A.S.; Kariuki, B.M. 3-{2-[3-(4-Chlorophenyl)-5-(4-fluorophenyl)-4,5-dihydro-1H-pyrazol-1-yl]thiazol-4-yl}-3,8a-dihydro-2H-chromen-2-one. IUCrData 2019, 4(2), x190170. https://doi.org/10.1107/S2414314619001706.
 
241– El-Hiti, G.A.; Abdel-Wahab, B.F.; Yousif, E.; Alotaibi, M.H.; Hegazy, A.S.; Kariuki, B.M. 5-[(4-Chlorophenyl)diazenyl]-2-[5-(4-fluorophenyl)-3-(furan-2-yl)-4,5-dihydro-1H-pyrazol-1-yl]-4-methylthiazole. IUCrData 2019, 4(2), x190211. https://doi.org/10.1107/S2414314619002116.
 
242– El-Hiti, G.A.; Abdel-Wahab, B.F.; Alqahtani, A.; Hegazy, A.S.; Kariuki, B.M. 3-[5-Methyl-1-(4-methylphenyl)-1H-1,2,3-triazol-4-yl]-1-phenyl-1H-pyrazole-4-carbaldehyde. IUCrData 2019, 4(2), x190217. https://doi.org/10.1107/S2414314619002177.
 
243– El-Hiti, G.A.; Abdel-Wahab, B.F.; Alqahtani, A.; Hegazy, A.S.; Kariuki, B.M. 2-[3-(4-Chlorophenyl)-5-(4-fluorophenyl)-4,5-dihydro-1H-pyrazol-1-yl]-8H-indeno[1,2-d]thiazole. IUCrData 2019, 4(2), x190218. https://doi.org/10.1107/S2414314619002189.
 
244– El-Hiti, G.A.; Abdel-Wahab, B.F.; Yousif, E.; Alotaibi, M.H.; Hegazy, A.S.; Kariuki, B.M. 2-[5-(4-Fluorophenyl)-3-(4-methylphenyl)-4,5-dihydro-1H-pyrazol-1-yl]-4-(5-methyl-1-phenyl-1H-1,2,3-triazol-4-yl)thiazole. IUCrData 2019, 4(2), x190240. https://doi.org/10.1107/S2414314619002402.
 
245– El-Hiti, G.A.; Abdel-Wahab, B.F.; Yousif, E.; Alotaibi, M.H.; Hegazy, A.S.; Kariuki, B.M. N'-[5-Acetyl-3-(4-bromophenyl)-2,3-dihydro-1,3,4-thiadiazol-2-ylidene]-5(1H-indol-3-yl)-1-phenyl-1H-pyrazole-3-carbohydrazide dimethylformamide monosolvate. IUCrData 2019, 4(2), x190248. https://doi.org/10.1107/S2414314619002487.
 
246– El-Hiti, G.A.; Abdel-Wahab, B.F.; Yousif, E.; Alotaibi, M.H.; Hegazy, A.S.; Kariuki, B.M. 1-(4-Fluorophenyl)-5-methyl-N′-{1-[5-methyl-1-(4-methylphenyl)-1H-1,2,3-triazol-4-yl]ethylidene}-1H-1,2,3-triazole-4-carbohydrazide. IUCrData 2019, 4(2), x190261. https://doi.org/10.1107/S241431461900261X.
 
247– El-Hiti, G.A.; Alotaibi, M.H.; Ahmed, A.A.; Hamad, B.A.; Ahmed, D.S.; Ahmed, A.; Hashim, H.; Yousif, E. The morphology and performance of poly(vinyl chloride) containing melamine Schiff bases against ultraviolet light. Molecules 2019, 24(4), 803. https://doi.org/10.3390/molecules24040803.
 
248– Alotaibi, M.H.; Mohamed, H.A.; Abdel-Wahab, B.F.; Hegazy, A.S.; Kariuki, B.M.; El-Hiti, G.A. Crystal structure of N'-(1-(2-hydroxyphenyl) ethylidene)-5-methyl-1-phenyl-1H-1,2,3-triazole-4-carbohydrazide, C18H17N5O2. Z. Kristallogr. – New Cryst. Struct. 2019, 234(2), 355–357. https://doi.org/10.1515/ncrs-2018-0417.
 
249– Alotaibi, M.H.; Mohamed, H.A.; Abdel-Wahab, B.F.; Hegazy, A.S.; Kariuki, B.M.; El-Hiti, G.A. Crystal structure of N'-(1-(benzofuran-2-yl)ethylidene)-2-cyanoacetohydrazide, C13H11N3O2. Z. Kristallogr. – New Cryst. Struct. 2019, 234(2), 361–362. https://doi.org/10.1515/ncrs-2018-0420.
 
250– El-Hiti, G.A.; Abdel-Wahab, B.F.; Alqahtani, A.; Hegazy, A.S.; Kariuki, B.M. 4-(Benzofuran-2-yl)-2-[3-(4-chlorophenyl)-5-(4-fluorophenyl)-4,5-dihydro-1H-pyrazol-1-yl]thiazole. IUCrData 2019, 4(3), x190359. https://doi.org/10.1107/S2414314619003596.
 
251– Alanazi, S.A.; El-Hiti, G.A.; Al-Baloud, A.A.; Alfarhan, M.I.; Al-Shahrani, A.; Albakri, A.A.; Alqahtani, S.; Masmali, A.M. Effects of short-term oral vitamin A supplementation on the ocular tear film in patients with dry eye. Clin. Ophthalmol. 2019, 13, 599–604. https://doi.org/10.2147/OPTH.S198349.
 
252– Masmali, A.M.; Alanazi, S.A.; Alotaibi, A.G.; Fagehi, R.; Abusharaha, A.; El-Hiti, G.A. The acute effect of a single dose of green tea on the quality and quantity of tears in normal eye subjects. Clin. Ophthalmol. 2019, 13, 605–610. https://doi.org/10.2147/OPTH.S201127.
 
253– Alotaibi, M.H.; Mohamed, H.A.; Abdel-Wahab, B.F.; Hegazy, A.S.; Kariuki, B.M.; El-Hiti, G.A. Crystal structure of 5-(5-(4-chlorophenyl)-1-phenyl-1H-pyrazol-3-yl)-N-phenyl-1,3,4-oxadiazol-2-amine, C23H16ClN5O. Z. Kristallogr. – New Cryst. Struct. 2019, 234(3), 543–545. https://doi.org/10.1515/ncrs-2018-0546.
 
254– Hadi, A.G.; Jawad, K.; Yousif, E.; El-Hiti, G.A.; Alotaibi, M.H.; Ahmed, D.S. Synthesis of telmisartan organotin(IV) complexes and their use as carbon dioxide capture media. Molecules 2019, 24(8), 1631. https://doi.org/10.3390/molecules24081631.
 
255– Masmali, A.M.; Alanazi, S.A.; Almagren, B.; El-Hiti, G.A. Assessment of the tear film in normal eye subjects after consumption of a single dose of hot peppermint drink. Clin. Optom. 2019, 11, 39–45. https://doi.org/10.2147/OPTO.S206904.
 
256– Alotaibi, M.H.; El-Hiti, G.A.; Yousif, E.; Ahmed, D.S.; Hashim, H.; Hameed, A.S.; Ahmed, A. Evaluation of the use of polyphosphates as photostabilizers and in the formation of ball-like polystyrene materials. J. Polym. Res. 2019, 26(7), 161. https://doi.org/10.1007/s10965-019-1829-y.
 
257– Alanazi, S.A.; Badawood, Y.S.; Aldawood, M.A.; El-Hiti, G.A.; Masmali, A.M. Effect of Refresh Plus® preservative-free lubricant eyedrops on tear ferning patterns in dry eye and normal eye subjects. Clin. Ophthalmol. 2019, 13, 1011–1017. https://doi.org/10.2147/OPTH.S213365.
 
258– Alanazi, S.A.; Alomran, A.A.; Abusharha, A.; Fagehi, R.; Al-Johani, N.J.; El-Hiti, G.A.; Masmali, A.M. An assessment of the ocular tear film in patients with thyroid disorders. Clin. Ophthalmol. 2019, 13, 1019–1026. https://doi.org/10.2147/OPTH.S210044.
 
259– Hadi, A.G.; Yousif, E.; El-Hiti, G.A.; Ahmed, D.S.; Jawad, K.; Alotaibi, M.H.; Hashim, H. Long-term effect of ultraviolet irradiation on poly(vinyl chloride) films containing naproxen diorganotin(IV) complexes. Molecules 2019, 24(13), 2396. https://doi.org/10.3390/molecules24132396.
 
260– Akram, E.; El-Hiti, G.A.; Ahmed, D.S.; Rashad, A.A.; Al Dahhan, W.H.; Yousif, E. Morphological, liquid crystal and optical band energy properties of polyphosphates. Al-Nahrain J. Sci. 2019, 22(2), 19–26. https://doi.org/10.22401/ANJS.22.2.03.
 
261– Alanazi, S.A.; Aldawood, M.A.; Badawood, Y.S.; El-Hiti, G.A.; Masmali, A.M. A comparative study of the quality of non-stimulated and stimulated tears in normal eye male subjects using the tear ferning test. Clin. Optom. 2019, 11, 65–71. https://doi.org/10.2147/OPTO.S214597.
 
262– Alanazi, S.A.; Abusharha, A.; Fagehi, R.; Alsaqr, A.M.; El-Hiti, G.A.; Alahmari, R.A.; Alenazi, F.A.; Alnassar, K.M.; Masmali, A.M. Assessment of the tear evaporation rate in chronic smokers using Delfin VapoMeter. Int. J. Ophthalmol. Vis. Sci. 2019, 4(2), 37–41. https://doi.org/10.11648/j.ijovs.20190402.12.
 
263– Smith, K.; Williams, D.; El-Hiti, G.A. Regioselective chlorination of phenols in the presence of tetrahydrothiopyran derivatives. J. Sulfur Chem. 2019, 40(5), 528–539. https://doi.org/10.1080/17415993.2019.1620230.
 
264– Alanazi, S.A.; Alfaifi, A.S.; Abusharha, A.; Fagehi, R.; Alsaqr, A.M.; El-Hiti, G.A.; Masmali, A.M. Effect of short-term oral vitamin D3 supplementation on tear film in dry eye subjects. Int. J. Ophthalmol. Vis. Sci. 2019, 4(3), 51–57. https://doi.org/10.11648/j.ijovs.20190403.13.
 
265– Hadi, A.G.; Jawad, K.; El-Hiti, G.A.; Alotaibi, M.H.; Ahmed, A.A.; Ahmed, D.S.; Yousif, E. Photostabilization of poly(vinyl chloride) by organotin(IV) compounds against photodegradation. Molecules 2019, 24(19), 3557. https://doi.org/10.3390/molecules24193557.
 
266– Alqahtani, A.; Abdel-Wahab, B.F.; Hegazy, A.S.; Kariuki, B.M.; El-Hiti, G.A. Synthesis and crystal structure of 2-((1-phenyl-3-(thiophen-2-yl)-1H-pyrazol-4-yl)methylene)-2,3-dihydro-1H-inden-1-one, C23H16N2OS. Z. Kristallogr. – New Cryst. Struct. 2019, 234(5), 969–971. https://doi.org/10.1515/ncrs-2019-0189.
 
267– Aldosari, O.F.; Abdel-Wahab, B.F.; Alotaibi, M.H.; Hegazy, A.S.; Kariuki, B.M.; El-Hiti, G.A. 5-Methyl-N'-[5-methyl-1-(4-methylphenyl)-1H-1,2,3-triazole-4-carbonyl]-1-(4-methylphenyl)-1H-1,2,3-triazole-4-carbohydrazide, C22H22N8O2. Z. Kristallogr. – New Cryst. Struct. 2019, 234(5), 1027–1029. https://doi.org/10.1515/ncrs-2019-0241.
 
268– Alotaibi, M.H.; Abdel-Wahab, B.F.; Aldosari, O.F.; Hegazy, A.S.; Kariuki, B.M.; El-Hiti, G.A. The crystal structure of N-(7-(4-fluorobenzylidene)-3-(4-fluorophenyl)-3,3a,4,5,6,7-hexahydro-2H-indazole-2-carbonothioyl)benzamide, C28H23F2N3OS. Z. Kristallogr. – New Cryst. Struct. 2019, 234(5), 1083–1085. https://doi.org/10.1515/ncrs-2019-0281.
 
269– Satar, H.A.; Ahmed, A.A.; Yousif, E.; Ahmed, D.S.; Alotibi, M.F.; El-Hiti, G.A. Synthesis of novel heteroatom-doped porous-organic polymers as environmentally efficient media for carbon dioxide storage. Appl. Sci. 2019, 9(20), 4314. https://doi.org/10.3390/app9204314.
 
270– Aldosari, O.F.; Abdel-Wahab, B.F.; Alotaibi, M.H.; Hegazy, A.S.; Kariuki, B.M.; El-Hiti, G.A. 7-(4-Fluorobenzylidene)-3-(4-fluorophenyl)-N-phenyl-3,3a,4,5,6,7-hexahydro-2H-indazole-2-carbothioamide–dimethylformamide (2/1), C27H23F2N3S, 0.5(C3H7NO). Z. Kristallogr. – New Cryst. Struct. 2019, 234(6), 1141–1143. https://doi.org/10.1515/ncrs-2019-0261.
 
271– Ahmed, A.A.; Ahmed, D.S.; El-Hiti, G.A.; Alotaibi, M.H.; Hashim, H.; Yousif, E. SEM morphological analysis of irradiated polystyrene film doped by a Schiff base containing a 1,2,4-triazole ring system. Appl. Petrochem. Res. 2019, 9(3–4), 169–177. https://doi.org/10.1007/s13203-019-00235-6.
 
272– Khidre, R.E.; Mohamed, H.A.; Kariuki, B.M.; El-Hiti. G.A. Facile, mild and efficient synthesis of azines using phosphonic dihydrazide. Phosphorous Sulfur Silicon Relat. Elem. 2020, 195(1), 29–36. https://doi.org/10.1080/10426507.2019.1633531.
 
273– Omer, R.M.; Al-Tikrity, E.T.B.; El-Hiti, G.A.; Alotibi, M.F.; Ahmed, D.S.; Yousif, E. Porous aromatic melamine Schiff bases as highly efficient media for carbon dioxide storage. Processes 2020, 8(1), 17. https://doi.org/10.3390/pr8010017.
 
274– Smith, K.; Hegazy, A.S.; El-Hiti, G.A. The use of polymeric sulfides as catalysts for the para-regioselective chlorination of phenol and 2-chlorophenol. J. Sulfur Chem. 2020, 41(1), 1–12. https://doi.org/10.1080/17415993.2019.1688815.
 
275– Mohamed, H.A.; Alotaibi, M.H.; Kariuki, B.M.; El-Hiti. G.A. Convenient synthesis of new heterocycles containing the quinoxaline ring system. Lett. Org. Chem. 2020, 17(2), 121–126. https://doi.org/10.2174/1570178616666190311161505.
 
276– El-Hiti, G.A.; Ahmed, D.S.; Yousif, E.; Alotaibi, M.H.; Star, H.A.; Ahmed, A.A. Influence of polyphosphates on the physicochemical properties of poly(vinyl chloride) after irradiation with ultraviolet light. Polymers 2020, 12(1), 193. https://doi.org/10.3390/polym12010193.
 
277– Alotibi, M.F.; Abdel-Wahab, B.F.; Yousif, E.; Hegazy, A.S.; Kariuki, B.M.; El-Hiti, G.A. Crystal structure of 3-(2-(5-(4-fluorophenyl)-3-(4-methylphenyl)-4,5-dihydro-1H-pyrazol-1-yl)thiazol-4-yl)-2H-chromen-2-one, C28H20FN3O2S. Z. Kristallogr. – New Cryst. Struct. 2020, 235(2), 469–471. https://doi.org/10.1515/ncrs-2019-0776.
 
278– Alotibi, M.F.; Abdel-Wahab, B.F.; Yousif, E.; Hegazy, A.S.; Kariuki, B.M.; El-Hiti, G.A. Crystal structure of (E)-3-(3-(5-methyl-1-phenyl-1H-1,2,3-triazol-4-yl)-1-phenyl-1H-pyrazol-4-yl)-1-phenylprop-2-en-1-one, C27H21N5O. Z. Kristallogr. – New Cryst. Struct. 2020, 235(2), 479–481. https://doi.org/10.1515/ncrs-2019-0779.
 
279– Mohammed, A.; Yousif, E.; El-Hiti, G.A. Synthesis and use of valsartan metal complexes as media for carbon dioxide storage. Materials 2020, 13(5), 1183. https://doi.org/10.3390/ma13051183.
 
280– Mohamed, H.A.; Khidre, R.E.; Kariuki, B.M.; El-Hiti, G.A. Synthesis of novel heterocycles using 1,2,3-triazole-4-carbohydrazides as precursors. J. Heterocycl. Chem. 2020, 57(3), 1055–1062. https://doi.org/10.1002/jhet.3840.
 
281– Sert, Y.; El-Hiti, G.A.; Gökce, H.; Ucun, F.; Abdel-Wahab, B.F.; Kariuki, B.M. DFT, molecular docking and experimental FT-IR, laser-Raman, NMR and UV investigations on a potential anticancer agent containing triazole ring system. J. Mol. Struct. 2020, 1211, 128077. https://doi.org/10.1016/j.molstruc.2020.128077.
 
282– Mohammed, A.; E;-Hiti, G.A.; Yousif, E.; Ahmed, A.A.; Ahmed, D.S.; Alotaibi, M.H. Protection of poly(vinyl chloride) films against photodegradation using various valsartan tin complexes. Polymers 2020, 12(4), 969. https://doi.org/10.3390/polym12040969.
 
283– Alanazi, S.A.; Abdel-Wahab, B.F.; Hegazy, A.S.; Kariuki, B.M.; El-Hiti, G.A. 2-[3-(4-Chlorophenyl)-5-(4-fluorophenyl)-4,5-dihydro-1H-pyrazol-1-yl]-5[(4-fluorophenyl)diazenyl]-4-methylthiazole. IUCrData 2020, 5(5), x200700. https://doi.org/10.1107/S2414314620007002.

284– Smith, K.; Hegazy, A.S.; El-Hiti, G.A. para-Selective chlorination of cresols and m-xylenol using sulfuryl chloride in the presence of poly(alkylene sulfide)s. J. Sulfur Chem. 2020, 41(4), 345–356. https://doi.org/10.1080/17415993.2020.1740226.
 
285– Alotaibi, A.A.; Abdel-Wahab, B.F.; Hegazy, A.S.; Kariuki, B.M.; El-Hiti, G.A. The crystal structure of 2-(3-(4-bromophenyl)-5-(4-fluorophenyl)-4,5-dihydro-1H-pyrazol-1-yl)-8H-indeno[1,2-d]thiazole, C25H17BrFN3S. Z. Kristallogr. – New Cryst. Struct. 2020, 235(4), 897–899. https://doi.org/10.1515/ncrs-2020-0088.
 
286– Alotaibi, A.A.; Abdel-Wahab, B.F.; Hegazy, A.S.; Kariuki, B.M.; El-Hiti, G.A. The crystal structure of 5-(2-(4-fluorophenyl)hydrazono)-4-methyl-2-((3-(5-methyl-1-(4-methylphenyl)-1H-1,2,3-triazol-4-yl)-1-phenyl-1H-pyrazol-4-yl)methylene)hydrazono)-2,5-dihydrothiazole dimethylformamide monosolvate, C30H25FN10S.C3H7NO. Z. Kristallogr. – New Cryst. Struct. 2020, 235(4), 915–917. https://doi.org/10.1515/ncrs-2020-0101.
 
287– Najim, L.H.; El-Hiti, G.A.; Ahmed, S.A.; Mohammed, A.; Alotaibi, M.H.; Yousif, E. Valsartan metal complexes as capture and reversible storage media for methane. Appl. Petrochem. Res. 2020, 10(2), 77–82. https://doi.org/10.1007/s13203-020-00247-7.

288–Ahmed. D.S.; El-Hiti, G.A.; Ibraheem, H.; Alotaibi, M.H.; Abdallah M.; Ahmed, A.A. Ismael, M.; Yousif, E. Enhancement of photostabilization of poly(vinyl chloride) doped with sulfadiazine tin complexes. J. Vinyl Addit. Techn. 2020, 25(3), 370–379. https://doi.org/10.1002/vnl.21752.
 
289– Mahmood, Z. N.; Yousif, E.; Alias, M.; El-Hiti, G.A.; Ahmed, D.S. Synthesis, characterization, properties, and use of new fusidate organotin complexes as additives to inhibit poly(vinyl chloride) photodegradation. J. Polym. Res. 2020, 27(9), 267. https://doi.org/10.1007/s10965-020-02245-8.
 
290– Alshammari, M.B.; Anouar, E.; El-Hiti, G.A. Spectroscopic characterization, Hirshfeld surface, DFT and TD-DFT of tert-butyl phenethylcarbamate and 1,1-dimethyl-3-phenethylurea. J. Appl. Spectrosc. 2020, 87(4), 736–744. https://doi.org/10.1007/s10812-020-01063-6

 291– Mousa, O.G.; Yousif, E.; Ahmed, A.A.; El‐Hiti, G.A.; Alotaibi, M.H.; Ahmed, D.S. Synthesis and use of carvedilol metal complexes as carbon dioxide storage media. Appl. Petrochem. Res. 2020, 10(3), 157–164. https://doi.org/10.1007/s13203-020-00255-7.

292– Balakit, A.A.; Makki, S.Q.; Sert, Y.; Ucun, F.; Alshammari, M.B.; Thordarson, P.; El-Hiti, G.A. Synthesis, spectrophotometric and DFT studies of new triazole Schiff bases as selective naked-eye sensors for acetate anion. Supramol. Chem. 2020, 32(10), 519–526. https://doi.org/10.1080/10610278.2020.1808217.

293– Majeed, A.; Yousif, E.; El-Hiti, G.A.; Alotaibi, M.H.; Ahmed, D.S.; Ahmed, A.A. Stabilization of PVC containing captopril tin complexes against degradation upon exposure to ultraviolet light. J. Vinyl Addit. Techn. 2020, 26(4), 601–612. https://doi.org/10.1002/vnl.21774.
 
294– Mohammad, T.H.; Risan, M.H.; El-Hiti, G.A.; Ahmed, D.S.; Yousif, E. Successful in-vivo treatment of mice infected with Candida glabrata using silver nanoparticles. Bionatura 2020, 5(4), 1340–1345. http://dx.doi.org/10.21931/RB/2020.05.04.10.

295– Mohamed, S.H.; Hameed, A.S.; Yousif, E.; Alotaibi, M.H.; Ahmed, D.S.; El-Hiti, G.A. New porous silicon-containing organic polymers: synthesis and carbon dioxide uptake. Processes 2020, 8(11), 1488. https://doi.org/10.3390/pr8111488.

296– Salam, B.; El-Hiti, G.A.; Bufaroosha, M.; Ahmed, D.S.; Ahmed, A.; Alotaibi, M.H.; Yousif, E. Tin complexes containing an atenolol moiety as photostabilizers for poly(vinyl chloride). Polymers 2020, 12(12), 2923. https://doi.org/10.3390/polym12122923.

297– Omer, R.M.; Al-Tikrity, E.T.B.; Yousif, E.; El-Hiti, G.A.; Ahmed, D.S.; Ahmed, A.A. Spectroscopic and morphological study of irradiated PVC films doped with polyphosphates containing 4,4'-methylenedianiline. Russ. J. Appl. Chem. 2020, 93(12), 1888–1898. https://doi.org/10.1134/S1070427220120113.
 
298– Mohamed, S.H.; Hameed, A.S.; El-Hiti, G.A.; Ahmed, D.S.; Kadhom, M.; Baashen, M.A.; Bufaroosha, M.; Ahmed, A.A.; Yousif, E. A process for the synthesis and use of highly aromatic organosilanes as additives for poly(vinyl chloride) films. Processes 2021, 9(1), 91. https://doi.org/10.3390/pr9010091.
 
299– Mahmood, Z.N.; Alias, M.; El-Hiti, G.A.; Ahmed, D.S.; Yousif, E. Synthesis and use of new porous metal complexes containing a fusidate moiety as gas storage media. Korean J. Chem. Eng. 2021, 38(1), 179–186. https://doi.org/10.1007/s11814-020-0692-1.
 
300– Alanazi, M.A.; El-Hiti, G.A.; Al-Madani, A.; Fagehi, R. Analysis of tear ferning patterns in young female subjects with refractive errors. J. Opthalmol. 2021, 2021, 9524143. https://doi.org/10.1155/2020/9524143.
 
301– Fagehi, R.; Alanazi, M.A.; Abdualkarim, W.A.; Alsubaie, N.F.; El-Hiti, G.A.; Masmali, A.M.; Almubrad, T. Correlation between tear osmolarity measurements using TearLab and I-Pen osmolarity systems in normal young Saudi subjects. EC Ophthalmology 2021, 12(2), 40–46. https://www.ecronicon.com/ecop/pdf/ECOP-12-00737.pdf.
 
302– Mousa, O.G.; El‐Hiti, G.A.; Baashen, M.A.; Bufaroosha, M.; Ahmed, A.; Ahmed, A.A.; Ahmed D.S.; Emad Yousif, E. Synthesis of carvedilol-organotin complexes and their effects on reducing photodegradation of poly(vinyl chloride). Polymers 2021, 13(3), 500. https://doi.org/10.3390/polym13040500.
 
303– Baashen, M.A.; Abdel-Wahab, B.F.; Hegazy, A.S.; Kariuki, B.M.; El-Hiti, G.A. The crystal structure of 4-(4-bromophenyl)-2-(3-(4-bromophenyl)-5-(4-fluorophenyl)-4,5-dihydro-1H-pyrazol-1-yl)thiazole, C24H16Br2FN3S. Z. Kristallogr. – New Cryst. Struct. 2021, 236(2), 425–427. https://doi.org/10.1515/NCRS-2020-0605.
 
304– Baashen, M.A.; Abdel-Wahab, B.F.; Hegazy, A.S.; Kariuki, B.M.; El-Hiti, G.A. The crystal structure of 1-phenyl-N-(4,5,6,7-tetrabromo-1,3-dioxoisoindolin-2-yl)-5-(thiophen-2-yl)-1H-pyrazole-3-carboxamide-dimethylformamdie (1/1) C22H10Br4N4O3S. Z. Kristallogr. – New Cryst. Struct. 2021, 236(2), 431–433. https://doi.org/10.1515/NCRS-2020-0607.

305– Ahmed, A.; El-Hiti, G.A.; Hadi, A.G.; Ahmed, D.S.; Baashen, M.A.; Hashim, H.; Yousif, E. Photostabilization of poly(vinyl chloride) films blended with organotin complexes of mefenamic acid for outdoor applications. Appl. Sci. 2021, 11(6), 2853. https://doi.org/10.3390/app11062853.

306– El-Hiti, G.A.; Abdel-Wahab, B.F.; Baashen, M.A.; Yousif, E.; Hegazy, A.S.; Kariuki, B.M. 2 (Naphthalen-2-yloxy)-N′-[2-(naphthalen-2-yloxy)acetyl]acetohydrazide monohydrate. IUCrData 2021, 6(3), x210314. https://doi.org/10.1107/S241431462100314X.

307– El-Hiti, G.A.; Abdel-Wahab, B.F.; Yousif, E.; Hegazy, A.S.; Kariuki, B.M. 2-(2,4-Dichlorophenoxy)-N′-[2-(2,4-dichlorophenoxy)acetyl]acetohydrazide. IUCrData 2021, 6(4), x210318. https://doi.org/10.1107/S2414314621003187.

308– Yaseen, A.A.; Al‐Tikrity, E.T.B.; El‐Hiti, G.A.; Ahmed, D.S.; Baashen, M.A.; Al-Mashhadani, M.H.; Yousif, E. A process for carbon dioxide capture using Schiff bases containing a trimethoprim unit Processes 2021, 9, 707. https://doi.org/10.3390/pr9040707.

309– Smith, K.; Al-Khalaf, A.K.H.; Akar, K.B.; Al-Badri, D.J.K.; Kariuki, B.M.; El-Hiti, G.A. Effects of structured solids on regioselectivity of dibromination of naphthalene. Catalysts 2021, 11(5), 540; https://doi.org/10.3390/catal11050540.

310– Smith, K.; Saleh, B.A.; Alshammari, M.B.; El-Hiti, G.A.; Elliott, M.C. Studies on a catalytic version of the Matteson asymmetric homologation reaction. Org. Biomol. Chem. 2021, 19(19), 4279–4284. https://doi.org/10.1039/d1ob00604e.

311– Alshammari, H.M.; Alotaibi, M.H.; Aldosari, O.F.; Alsolami, A.S.; Alotaibi, N.A.; Alzahrani, Y.A.; Alhumaimess, M.S.; Alotaibi, R.L.; El-Hiti, G.A. A process for hydrogen production from the catalytic decomposition of formic acid over iridium—palladium nanoparticles. Materials 2021, 14(12), 3258. https://doi.org/10.3390/ma14123258.

312– Jasem, H.; Hadi, A.G.; El-Hiti, G.A.; Baashen, M.A.; Hashim, H.; Ahmed, A.A.; Ahmed, D.S.; Yousif, E. Tin-naphthalene sulfonic acid complexes as photostabilizers for poly(vinyl chloride). Molecules 2021, 26(12), 3629. https://doi.org/10.3390/molecules26123629.

313– Fagehi, R.; Al-Bishry, A.B.; Alanazi, M.A.; Abusharha, A.; El-Hiti, G.A.; Masmali, A.M. Investigation of the repeatability of tear osmolarity using an I-PEN osmolarity device. Taiwan J. Ophthalmol. 2021, 11(2), 168–174. https://doi.org/10.4103/tjo.tjo_65_20.

314– Fagehi, R.; Mubaraki, Ali, B.M.; Hakami, A.; El-Hiti, G.A. Screening and identification of normal flora isolated from the ocular surface of normal and dry eyes subjects. EC Ophthalmology 2021, 12(7), 3–10. https://www.ecronicon.com/ecop/pdf/ECOP-12-00781.pdf.

315– Smith, K.; El-Hiti, G.A. Development of efficient and selective processes for the synthesis of commercially important chlorinated phenols. Organics 2021, 2(3), 142–160. https://doi.org/10.3390/org2030012.

316– Kariuki, B.M.; Abdel-Wahab, B.F.; El-Hiti, G.A. Synthesis and structural characterization of isostructural 4-(4-aryl)-2-(5-(4-fluorophenyl)-3-(1-(4-fluorophenyl)-5-methyl-1H-1,2,3-triazol-4-yl)-4,5-dihydro-1H-pyrazol-1-yl)thiazoles. Crystals 2021, 11(7), 795. https://doi.org/10.3390/cryst11070795.

317– Ghani, H.; Yousif, E.; Ahmed, D.S.; Kariuki, B.M.; El-Hiti, G.A. Tin Complexes of 4-(Benzylideneamino)benzenesulfonamide: Synthesis, Structure Elucidation and Their Efficiency as PVC Photostabilizers. Polymers 2021, 13(15), 2434. https://doi.org/10.3390/polym13152434.

318– Smith, K.; El-Hiti, G.A. Commercially important chlorinated phenols. Encyclopedia 2021. https://encyclopedia.pub/14154.

319– Yaseen, A.A.; Al‐Tikrity, E.T.B.; Yousif, E.; Ahmed, D.S.; Kariuki, B.M.; El‐Hiti, G.A. Effect of ultraviolet irradiation on polystyrene containing cephalexin Schiff bases. Polymers 2021, 13, 2982. https://doi.org/10.3390/polym13172982.

320– Alanazi, M.A.; El-Hiti, G.A.; Almaymuni, R.; Baashen, M.A.; Fagehi, R.; Masmali, A.M. Tear ferning test as a valuable tool to determine the quality of tear film in animals and human. EC Ophthalmology 2021, 12(9), 41–55. https://www.ecronicon.com/ecop/pdf/ECOP-12-00803.pdf.