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Y.S. Mohammed, H.A.A. Regila, A.K.M.N. Gohar, F.F. Abdel-Latif and E. Kh. Ahmed Synthesis of Substituted Quinoline, Furo [2,3-b] Indole and Indolinyldene-S-Thiazine Derivatives. Egypt. J. Chem., 31, 437- 444 (1988) UMIS

Essam Khalaf Ahmed Mohammed

التصنيف: Not Applicable

F.F. Abdel-Latif, Y.S. Mohammed and E.Kh. Ahmed Heterocycles Synthesis Through Reactions of Indolin-2-one Derivatives with Amino and Active Methylene Reagents AFINIDAD XLVI, 420, 139-142 (1989) UMIS

Essam Khalaf Ahmed Mohammed

التصنيف: Not Applicable

F.F. Abdel-Latif, R. Mekheimer, E.Kh.AHMED and T.B. Abdel Aleem A Simple Route for the Synthesis of Pyrano[2,3-c]pyrazole and pyridine-2-one Derivatives Pharmazie, 48, 736-738 (1993) UMIS

Essam Khalaf Ahmed Mohammed

التصنيف: Not Applicable

F.F. Abdel-latif, Y.S. Mohammed, H. Abdel-Ghani, E.Kh. Ahmed and E.H. El-Gawish Synthesis through reactions of nucleophiles with acrylonitriles; Part 13: A direct one-pot synthesis of thiazolopyridines UMIS

Essam Khalaf Ahmed Mohammed

التصنيف: Not Applicable

R. Mekheimer, E. Kh. Ahmed and A.F. Khattab A novel nucleophilic substitution with quinoline derivatives. Synthesis of quinolones and pyrazolo[4,3-c]quinoline derivatives. Bull. Chem. Soc. Jpn., 66, 2936-2940 (1993) UMIS

Essam Khalaf Ahmed Mohammed

التصنيف: Not Applicable

F. Sauter, U. Jordis, J. Froehlich, K. Gewald, F. Grohmann and E.Kh. Ahmed Syntheses of fully aromatic pyrido[4',3': 4,5]thieno[2,3-d] pyrimidine derivatives ACH - Models in Chemistry, 131, 489-498 (1994) UMIS

Essam Khalaf Ahmed Mohammed

التصنيف: Not Applicable

F.F. Abdel-Latif, R.A. Mekheimer, M.M. Mashaly and E.Kh. Ahmed The Synthesis of Heterocycles from Indolin-2-one Derivatives and Active Methylene Reagents Collect. Czech. Chem. Commun. 59, 1235-1240 (1994) UMIS

Essam Khalaf Ahmed Mohammed

التصنيف: Not Applicable

R. Mekheimer, E. Kh. Ahmed and A.F. Khattab Synthesis of 2,4-diamino-quinoline-3-carbonitriles from tetrazolo- [1,5-a]quinoline-4-carbonitriles Afinidad L1,451,233-236 (1994) UMIS

Essam Khalaf Ahmed Mohammed

التصنيف: Not Applicable

E. Kh. Ahmed Synthesis of New Fused Heterocycles by Annelation of Thiopyrano- [4' ,3' : 4,5]thieno[2,3-c]pyrimidines Monatshefte für Chemie, 126, 953-959 (1995) UMIS

Essam Khalaf Ahmed Mohammed

التصنيف: Not Applicable

F. Sauter, J. Froehlich and E.Kh. Ahmed Synthesis of Dihydrothiopyrano[3,4-c]pyridines and of Fusion products thereof Monatshefte für Chemie, 126, 945-952 (1995) UMIS

Essam Khalaf Ahmed Mohammed

التصنيف: Not Applicable

E.Kh. Ahmed, J. Froehlich and F. Sauter Fusion Reactions of N-Heterocyclic Moieties to Thiopyrano[4',3': 4,5]- thieno[2,3-d]pyrimidines Collect. Czech. Chem. Commun., 61, 147-154 (1996) UMIS

Essam Khalaf Ahmed Mohammed

التصنيف: Not Applicable

F. Sauter, J. Froehlich and E.Kh. Ahmed New Hetero-Annelation Reactions Using bis-(Methylthio)-methylenamino- and Related Reagents Monatshefte für Chemie, 127, 319-324 (1996) UMIS

Essam Khalaf Ahmed Mohammed

التصنيف: Not Applicable

F.F. Abdel-Latif, E. Kh. Ahmed, R. Mekheimer and M.M. Mashaly Synthesis of Novel Heterocycles Through Reaction of Indolin-2-one Derivatives with Active Methylene and Amino Reagents Arch. Pharm. Res., 20, 507-509 (1997) UMIS

Essam Khalaf Ahmed Mohammed

التصنيف: Not Applicable

E. Kh. Ahmed, U. Sensfuss and W.D.Habicher Fusion of pyrido[4,3: 4,5]thieno[2,3-d]pyrimidines with N-Heterocyclic Moieties J. Heterocyclic Chem., 36, 1119-1122 (1999) UMIS

Essam Khalaf Ahmed Mohammed

التصنيف: Not Applicable

E. Kh. Ahmed, A.M.N.Gohar, and M.A. Ameen Synthesis of new pyrido[4,3: 4,5]thieno[2,3-d]-1,2,4-triazolo{3,4-c]pyrimidines and 5,6-dihydro-1,2,4-triazolo[4,3: 1,2] pyrido[4,3: 4,5]thieno[2,3-d]pyrimidine ring system UMIS

Essam Khalaf Ahmed Mohammed

التصنيف: Not Applicable

R. A. Mekheimer, E. Kh. Ahmed, H. A. El-Fahham Fused Quinoline Heterocycles IV: First Synthesis of Four Heterocyclic Ring System of 1H-5-Thia-1,2,3,6-Tetraazaacephenanthrylenes and 1H-5-Thia-1,3,6-Triazaacephenanthrylenes UMIS

Essam Khalaf Ahmed Mohammed

التصنيف: Not Applicable

E. Kh. Ahmed Syntheses of Some New Azolopyrido[4,3: 4,5]thieno[2,3-d] pyrimidines Heteroatom Chemistry, 13 (1), 280-286 (2002) UMIS

Essam Khalaf Ahmed Mohammed

التصنيف: Not Applicable

E. Kh. Ahmed Synthesis of New pyrido[4,3: 4,5]thieno[2,3:4,5] pyrimido[2,1-b] [1,3,4]thiadiazine Derivatives Phosphorus, Sulfur, and Silicon And the related Elements 177 (4), 989-1000 (2002) UMIS

Essam Khalaf Ahmed Mohammed

التصنيف: Not Applicable

E. Kh. Ahmed A Convenient Synthesis For Some New pyrido[4,3: 4,5]thieno[2,3-d]- pyrimidines and Related Fused 1,2,4-triazolo and 1,3,4-thiadiazolo- Derivatives Phosphorus, Sulfur, and Silicon And the related Elements UMIS

Essam Khalaf Ahmed Mohammed

التصنيف: Not Applicable

E. Kh. Ahmed Synthesis of 3-Subistituted Pyrido[4,3: 4,5]thieno[2,3-d]- pyrimidines and Related Fused Thiazolo Derivatives Heteroatom Chemistry 14 (3), 201-207 (2003) UMIS

Essam Khalaf Ahmed Mohammed

التصنيف: Not Applicable

E. Kh. Ahmed Synthesis of Some New Pyrido[4,3: 4,5]thieno[2,3-d]- pyrimidines and Related Fused Heterocycles Phosphorus, Sulfur, and Silicon And the related Elements 178 (1), 1-16 (2003) UMIS

Essam Khalaf Ahmed Mohammed

التصنيف: Not Applicable

R.A. Mekheimer, E. Kh. Ahmed, H.A. El-Fahham, L.H. Kamel and D. Döpp Fused quiunoline heterocycles V. Synthesis of novel 1,2,3,5,6-pentaazaaceanthrylene derivatives J. Chem. Res. Proof (2003) UMIS

Essam Khalaf Ahmed Mohammed

التصنيف: Not Applicable

R.A. Mekheimer, E. Kh. Ahmed, H.A. El-Fahham, L.H. Kamel and D. Döpp Fused quiunoline heterocycles V. Synthesis of novel 1,2,3,5,6-pentaazaaceanthrylene derivatives J. Chem. Res. Proof (2003) UMIS

Essam Khalaf Ahmed Mohammed

التصنيف: Not Applicable

A Novel Synthetic Routes to New3- Substituted -4-oxo-3,4,5,6,7,8- Hexahydropyridothiewnopyrimidine-7-caboxylic acid Ethyl ester Derivatives UMIS

Essam Khalaf Ahmed Mohammed

التصنيف: Not Applicable

E. Kh. AHMED and M.A. Ameen Synthesis of Thienopyridofuro pyrimidine Chinese Chemical Letters 21, 669-673 (2010 ) UMIS

Essam Khalaf Ahmed Mohammed

التصنيف: Not Applicable

E.Kh. Ahmed, M. A. Ameen and F.F.Abdel-Latif Microwave- Assisted Synthesis of Novel Imidazo- and Pyrimidopyrido- Thienopyrimidines UMIS

Essam Khalaf Ahmed Mohammed

التصنيف: Not Applicable

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