scholarly journals 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

Molecules ◽  
2011 ◽  
Vol 16 (8) ◽  
pp. 6502-6511 ◽  
Author(s):  
Yahia Nasser Mabkhot ◽  
Abdullah Mohammed Al-Majid ◽  
Assem Barakat ◽  
Saeed Alshahrani ◽  
Yamin Siddiqui
Keyword(s):  
Building Block ◽  
Heterocyclic Synthesis ◽  
Pyrimidine Derivatives ◽  
Novel Synthesis

Heterocyclic Synthesis with Nitriles: A Novel Synthesis of Some Thiophene and Thieno[2,3-d]pyrimidine Derivatives, II [1]

1989 ◽  
Vol 44 (4) ◽  
pp. 488-492 ◽  
Author(s):  
Fathy Mohamed Abdelrazek
Keyword(s):  
Heterocyclic Synthesis ◽  
Pyrimidine Derivatives ◽  
Novel Synthesis ◽  
Thiophene Derivatives

Some differently substituted 4-phenylthiophene derivatives 2a-d and 8a, b have been prepared from α-substituted-β-thiocyanatomethyl cinnamonitrile (1). The thiophene derivatives 2a, b and 8a react with trichloroacetonitrile and formamide to afford thieno[2,3-d]pyrimidine derivatives 4, 5 a-c, 7 and 9 a-c, respectively.

Enaminonitriles in Heterocyclic Synthesis: Novel Synthesis of 3-Aminopyrroles and Pyrrolo[3,2-d]pyrimidine Derivatives

2008 ◽  
Vol 63 (5) ◽  
pp. 564-570 ◽  
Author(s):  
Abdellatif M. Salaheldin
Keyword(s):  
Heterocyclic Synthesis ◽  
Pyrimidine Derivatives ◽  
Novel Synthesis ◽  
Substituted Pyrroles

Several new 3-aminopyrrole derivatives have been synthesized from 3-substituted amino-2-phenylacrylonitriles using Thorpe-Ziegler cyclization. These substituted pyrroles are readily converted into 5H-pyrrolo[3,2-d]pyrimidines (9-deazapurines).

Activated nitriles in heterocyclic synthesis: A Novel Synthesis of Pyrimidine Derivatives

1987 ◽  
Vol 329 (4) ◽  
pp. 552-556 ◽  
Author(s):  
Nadia Sobhy Ibrahim ◽  
Hoda Zaki Shams ◽  
Fatma Abd El-Maksoud Abd El-Aal ◽  
Mohamed Hilmy Elnagdi
Keyword(s):  
Heterocyclic Synthesis ◽  
Pyrimidine Derivatives ◽  
Novel Synthesis

Pyrimidinethione as a building block in heterocyclic synthesis: synthesis of pyrano[2,3-d]pyrimidine, chromeno[2,3-d]pyrimidine, pyrido[3′,2′:5,6]pyrano[2,3-b]pyridine, and pyrimido[5′,4′:5,6]pyrano[2,3-d]pyrimidine derivatives

2016 ◽  
Vol 22 (6) ◽  
Author(s):  
Mohamed Ahmed Mahmoud Abdel Reheim ◽  
Ibrahim Saad Abdel Hafiz ◽  
Mohamed Ahmed Elian
Keyword(s):  
Biological Activity ◽  
Building Block ◽  
Heterocyclic Compounds ◽  
Heterocyclic Synthesis ◽  
Pyrimidine Derivatives

AbstractNew heterocyclic compounds with expected biological activity have been prepared by reactions of 6-phenyl-2-thioxo-2,3-dihydropyrimidine-4(5

ChemInform Abstract: Activated Nitriles in Heterocyclic Synthesis: A Novel Synthesis of Pyrimidine Derivatives.

ChemInform ◽  
1988 ◽  
Vol 19 (9) ◽  
Author(s):  
N. S. IBRAHIM ◽  
H. Z. SHAMS ◽  
F. A. E. ABD EL-AAL ◽  
M. H. ELNAGDI
Keyword(s):  
Heterocyclic Synthesis ◽  
Pyrimidine Derivatives ◽  
Novel Synthesis

DiphenylN-Sulfamoylcarbonimidate - A Versatile Building Block in Heterocyclic Synthesis

Synthesis ◽  
1991 ◽  
Vol 1991 (09) ◽  
pp. 753-758 ◽  
Author(s):  
Manfred Haake ◽  
Bernd Schümmelfeder
Keyword(s):  
Building Block ◽  
Heterocyclic Synthesis
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