All Stories

  1. Synthesis, X-Ray Crystal Structures, and Preliminary Antiproliferative Activities of New s-Triazine-hydroxybenzylidene Hydrazone Derivatives

    Article • Journal of Chemistry, April 2019, Hindawi Publishing Corporation

    Professor Ayman Ahmed El-Faham, Farid Badria, Fardous Elsenduny , Dr Assem Barakat

  2. Complex Clonal Diversity of Staphylococcus aureus Nasal Colonization among Community Personnel, Healthcare Workers, and Clinical Students in the Eastern Province, Saudi Arabia

    Article • BioMed Research International, December 2018, Hindawi Publishing Corporation

    Dr Mohamed M Emara, Dr Taghrid Said Mohamed El-Mahdy, Dr Assem Barakat

  3. Crystal structure of 5,5′-((3-hydroxy-4-methoxyphenyl)methylene)bis(1,3-diethyl-6-hydroxy-2-thioxo-2,3-dihydropyrimidin-4(1H)-one), C24H30N4O6S2

    Article • Zeitschrift für Kristallographie - New Crystal Structures, August 2018, De Gruyter

    Dr Assem Barakat

  4. Crystal structure of 6-hydroxy-5-((2-hydroxy-6-oxocyclohex-1-en-1-yl)(4-methoxyphenyl)methyl)-1,3-dimethylpyrimidine-2,4(1H,3H)-dione, C20H22N2O6

    Article • Zeitschrift für Kristallographie - New Crystal Structures, July 2018, De Gruyter

    Dr Assem Barakat

  5. Synthesis, and characterization of a new series of sulfite and sulfate derivatives of d-Mannitol

    Article • Journal of Saudi Chemical Society, May 2016, Elsevier

    Dr Assem Barakat

  6. Crystal structure of (Z)-5-(4-chlorobenzylidene)-2-thioxothiazolidin-4-one —dimethylsulfoxide (1:1), C12H12ClNO2S3

    Article • Zeitschrift für Kristallographie - New Crystal Structures, January 2016, De Gruyter

    Dr Assem Barakat

  7. Crystal structure of diethylammonium 5-((4-fluorophenyl)(6-hydroxy-1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)methyl)-1,3-dimethyl-2,6-dioxo-1,2,3,6-tetrahydropyrimidin-4-olate, C23H30FN5O6

    Article • Zeitschrift für Kristallographie - New Crystal Structures, January 2016, De Gruyter

    Dr Assem Barakat, Warad Ismail

  8. Crystal structure of diethylammonium 1,3-dimethyl-2,4,6-trioxohexahydropyrimidin-5-ide, C10H19N3O3

    Article • Zeitschrift für Kristallographie - New Crystal Structures, January 2016, De Gruyter

    Dr Assem Barakat

  9. Synthesis and molecular characterization of 5,5′-((2,4-dichlorophenyl)methylene)bis(1,3-dimethylpyrimidine-2,4,6(1H,3H,5H)-trione)

    Article • Journal of Molecular Structure, March 2015, Elsevier

    Dr Assem Barakat

  10. Synthesis, molecular structure investigations and antimicrobial activity of 2-thioxothiazolidin-4-one derivatives

    Article • Journal of Molecular Structure, February 2015, Elsevier

    Dr Assem Barakat

  11. Synthesis, Bioactivity, Molecular Docking and POM Analyses of Novel Substituted Thieno[2,3-b]thiophenes and Related Congeners

    Article • Molecules, January 2015, MDPI AG

    Dr Assem Barakat, Prof. Zaheer Ul-Haq

  12. Crystal structure of (Z)-5-(3-methylbenzylidene)-2-thioxothiazolidin-4- one, C13H15NO2S3

    Article • Zeitschrift für Kristallographie - New Crystal Structures, January 2015, De Gruyter

    Dr Assem Barakat

  13. Crystal structure of 1,3-dimethyl-5-(2,4,6-trimethylbenzylidene)pyrimidine- 2,4,6-1H,3H,5H)-trione, C16H18N2O3

    Article • Zeitschrift für Kristallographie - New Crystal Structures, December 2014, De Gruyter

    Dr Assem Barakat

  14. Substituted thieno[2,3-b]thiophenes and related congeners: Synthesis, β-glucuronidase inhibition activity, crystal structure, and POM analyses

    Article • Bioorganic & Medicinal Chemistry, December 2014, Elsevier

    Dr Assem Barakat

  15. Cis- & trans-isomerism in [Cl2Ru(dppb)N-N] complexes: Synthesis, structural characterization and X-ray crystal structure of dichloromethane solvated cis-diaminebis(diphenylphosphinobutane)ruthenium(II) complex

    Article • Journal of Molecular Structure, November 2014, Elsevier

    Professor Saud I Al-Resayes, Dr Assem Barakat, Warad Ismail

  16. Facile and new convenient route for synthesis of some C2-symmetric bidentate phosphine ligands derived from d-mannitol

    Article • Journal of Saudi Chemical Society, November 2014, Elsevier

    Dr Assem Barakat

  17. Synthesis, X-ray Diffraction, Thermogravimetric and DFT Analyses of Pyrimidine Derivatives

    Article • Molecules, October 2014, MDPI AG

    Dr Assem Barakat

  18. ChemInform Abstract: An Efficient and Green Procedure for Synthesis of Rhodanine Derivatives by Aldol-Thia-Michael Protocol Using Aqueous Diethylamine Medium.

    Article • ChemInform, September 2014, Wiley

    Dr Assem Barakat

  19. Zwitterionic pyrimidinium adducts as antioxidants with therapeutic potential as nitric oxide scavenger

    Article • European Journal of Medicinal Chemistry, September 2014, Elsevier

    Dr Assem Barakat

  20. ChemInform Abstract: Highly Enantioselective Friedel-Crafts Alkylation of Indole with Electron Deficient trans-β-Nitroalkenes Using Zn(II)-Oxazoline-Imidazoline Catalysts.

    Article • ChemInform, July 2014, Wiley

    Dr Assem Barakat

  21. Synthesis, Anti-microbial and Molecular Docking Studies of Quinazolin-4(3H)-one Derivatives

    Article • Molecules, June 2014, MDPI AG

    Dr Assem Barakat, Prof. Zaheer Ul-Haq

  22. Design, Synthesis, Characterization of Novel Ruthenium(II) Catalysts: Highly Efficient and Selective Hydrogenation of Cinnamaldehyde to (E)-3-Phenylprop-2-en-1-ol

    Article • Molecules, May 2014, MDPI AG

    Dr Assem Barakat, Warad Ismail

  23. Correction: Al-Majid, A.M., et al., Tandem Aldol-Michael Reactions in Aqueous Diethylamine Medium: A Greener and Efficient Approach to Bis-Pyrimidine Derivatives. Int. J. Mol. Sci. 2013, 14, 23762–23773.

    Article • International Journal of Molecular Sciences, April 2014, MDPI AG

    Dr Assem Barakat

  24. Tandem Knoevenagel–Michael reactions in aqueous diethylamine medium: A greener and efficient approach toward bis-dimedone derivatives

    Article • Arabian Journal of Chemistry, April 2014, Elsevier

    Dr Assem Barakat

  25. Synthesis and Biological Evaluation of 2-Aminobenzamide Derivatives as Antimicrobial Agents: Opening/Closing Pharmacophore Site

    Article • International Journal of Molecular Sciences, March 2014, MDPI AG

    Dr Assem Barakat

  26. Tandem Aldol-Michael reactions in aqueous diethylamine medium: a greener and efficient approach to dimedone-barbituric acid derivatives

    Article • Chemistry Central Journal, February 2014, Springer Science + Business Media

    Professor M Rafiq H Siddiqui, Dr Assem Barakat, Prof. Mohammed Rafiq Siddiqui

  27. Highly enantioselective Friedel–Crafts alkylation of indole with electron deficient trans-β-nitroalkenes using Zn(II)–oxazoline–imidazoline catalysts

    Article • Tetrahedron Asymmetry, February 2014, Elsevier

    Dr Assem Barakat

  28. Crystal structure of 1-(5-acetyl-3,4-dimethyl-thieno[2,3-b]thio phen-2-yl)-ethanone, C12H12O2S2

    Article • Zeitschrift für Kristallographie - New Crystal Structures, January 2014, De Gruyter

    Dr Assem Barakat

  29. A Greener, Efficient Approach to Michael Addition of Barbituric Acid to Nitroalkene in Aqueous Diethylamine Medium

    Article • Molecules, January 2014, MDPI AG

    Dr Assem Barakat

  30. An efficient and green procedure for synthesis of rhodanine derivatives by aldol-thia-Michael protocol using aqueous diethylamine medium

    Article • RSC Advances, January 2014, Royal Society of Chemistry

    Dr Assem Barakat

  31. Crystal structure of 1-(5-acetyl-3,4-dimethyl-thieno[2,3-b]thiophen-2-yl)- ethanone, C12H12O2S2

    Article • Zeitschrift für Kristallographie - New Crystal Structures, January 2014, De Gruyter

    Dr Assem Barakat

  32. Synthesis, Characterization, X-Ray Crystal Structure, and Antimicrobial Activity of 1,1′-(3,4-Diphenylthieno[2,3-b]thiophene-2,5-diyl)diethanone

    Article • Journal of Chemistry, January 2014, Hindawi Publishing Corporation

    Dr Assem Barakat

  33. DNA Binding Test, X-Ray Crystal Structure, Spectral Studies, TG-DTA, and Electrochemistry of [CoX2(dmdphphen)] (Dmdphphen Is 2,9-Dimethyl-4,7-diphenyl-1,10-phenanthroline, X = Cl, and NCS) Complexes

    Article • Bioinorganic Chemistry and Applications, January 2014, Hindawi Publishing Corporation

    Dr Assem Barakat, Warad Ismail

  34. Facile and Promising Method for Michael Addition of Indole and Pyrrole to Electron-Deficienttrans-β-Nitroolefins Catalyzed by a Hydrogen Bond Donor Catalyst Feist’s Acid and Preliminary Study of Antimicrobial Activity

    Article • The Scientific World JOURNAL, January 2014, Hindawi Publishing Corporation

    Dr Assem Barakat

  35. One Step Synthesis of NiO Nanoparticles via Solid-State Thermal Decomposition at Low-Temperature of Novel Aqua(2,9-dimethyl-1,10-phenanthroline)NiCl2 Complex

    Article • International Journal of Molecular Sciences, December 2013, MDPI AG

    Dr Assem Barakat, Warad Ismail

  36. Tandem Aldol-Michael Reactions in Aqueous Diethylamine Medium: A Greener and Efficient Approach to Bis-Pyrimidine Derivatives

    Article • International Journal of Molecular Sciences, December 2013, MDPI AG

    Dr Assem Barakat

  37. ChemInform Abstract: Highly Enantioselective Friedel-Crafts Alkylation of Indoles with α,β-Unsaturated Ketones with Simple Cu(II)-Oxazoline-Imidazoline Catalysts.

    Article • ChemInform, October 2013, Wiley

    Dr Assem Barakat

  38. 3,4-Dimethylthieno[2,3-b]thiophene-2,5-dicarbonitrile

    Article • Acta Crystallographica Section E Structure Reports Online, July 2013, International Union of Crystallography

    Dr Assem Barakat

  39. Synthesis, reactions and biological activity of some new bis-heterocyclic ring compounds containing sulphur atom

    Article • Chemistry Central Journal, July 2013, Springer Science + Business Media

    Dr Assem Barakat

  40. Ethyl 4-acetyl-5-anilino-3-methylthiophene-2-carboxylate

    Article • Acta Crystallographica Section E Structure Reports Online, June 2013, International Union of Crystallography

    Dr Assem Barakat

  41. Highly enantioselective Friedel–Crafts alkylation of indoles with α,β-unsaturated ketones with simple Cu(II)–oxazoline–imidazoline catalysts

    Article • Tetrahedron, June 2013, Elsevier

    Dr Assem Barakat

  42. Dimethyl 2-(4-methylbenzylidene)malonate

    Article • Acta Crystallographica Section E Structure Reports Online, May 2013, International Union of Crystallography

    Dr Assem Barakat

  43. Synthesis of Thieno[2,3-b]thiophene Containing Bis-Heterocycles-Novel Pharmacophores

    Article • International Journal of Molecular Sciences, March 2013, MDPI AG

    Dr Assem Barakat

  44. (E)-Ethyl 2-anilino-5-[3-(dimethylamino)acryloyl]-4-phenylthiophene-3-carboxylate

    Article • Acta Crystallographica Section E Structure Reports Online, February 2013, International Union of Crystallography

    Dr Assem Barakat

  45. Synthesis, structural characterization of monodentate phosphite ligands and phosphite ruthenium complexes derived from d-mannitol

    Article • Arabian Journal of Chemistry, January 2013, Elsevier

    Dr Assem Barakat

  46. Multiclass analysis on repaglinide, flubendazole, robenidine hydrochloride and danofloxacin drugs

    Article • Arabian Journal of Chemistry, January 2013, Elsevier

    Dr Assem Barakat

  47. Expeditious and highly efficient protocol for the synthesis of novel diversely substituted thieno[2,3-b]thiophene

    Article • Journal of Molecular Structure, November 2012, Elsevier

    Dr Assem Barakat

  48. A Practical Chemo-enzymatic Approach to Highly Enantio-Enriched 10-Ethyl-7,8-dihydro-γ-ionone Isomers: A Method for the Synthesis of 4,5-Didehydro-α-Ionone

    Article • International Journal of Molecular Sciences, May 2012, MDPI AG

    Dr Assem Barakat

  49. Synthesis and Characterization of Some New C2 Symmetric Chiral Bisamide Ligands Derived from Chiral Feist’s Acid

    Article • Molecules, May 2012, MDPI AG

    Dr Assem Barakat

  50. A Novel and Expedient Approach to New Thiazoles, Thiazolo[3,2-a]pyridines, Dihydrothiophenes, and Hydrazones Incorporating Thieno[2,3-b]thiophene Moiety

    Article • International Journal of Molecular Sciences, April 2012, MDPI AG

    Dr Assem Barakat

  51. Synthesis and Characterization of Privileged Monodentate Phosphoramidite Ligands and Chiral Brønsted Acids Derived from D-Mannitol

    Article • International Journal of Molecular Sciences, February 2012, MDPI AG

    Dr Assem Barakat

  52. Comprehensive and Facile Synthesis of Some Functionalized Bis-Heterocyclic Compounds Containing a Thieno[2,3-b]thiophene Motif

    Article • International Journal of Molecular Sciences, February 2012, MDPI AG

    Dr Assem Barakat

  53. A Facile and Convenient Synthesis of some Novel Hydrazones, Schiff’s Base and Pyrazoles Incorporating Thieno[2,3-b]thiophenes

    Article • International Journal of Molecular Sciences, November 2011, MDPI AG

    Dr Assem Barakat

  54. 1,1’-(3-Methyl-4-phenylthieno[2,3-b]thiophene-2,5-diyl)diethanone as a Building Block in Heterocyclic Synthesis. Novel Synthesis of Some Pyrazole and Pyrimidine Derivatives

    Article • Molecules, August 2011, MDPI AG

    Dr Assem Barakat

  55. The Asymmetric Aza-Claisen Rearrangement: Development of Widely Applicable Pentaphenylferrocenyl Palladacycle Catalysts

    Article • Chemistry - A European Journal, September 2009, Wiley

    Dr Assem Barakat

  56. Synthesis, olfactory evaluation and determination of the absolute configuration of the β- and γ-Iralia® isomers

    Article • Tetrahedron Asymmetry, October 2008, Elsevier

    Dr Assem Barakat

  57. Chemoenzymatic resolution of cis- and trans-3,6-dihydroxy-α-ionone. Synthesis of the enantiomeric forms of dehydrovomifoliol and 8,9-dehydrotheaspirone

    Article • Tetrahedron Asymmetry, October 2007, Elsevier

    Dr Assem Barakat