Synthesis and Antimicrobial Evaluation of Novel Pyrazolo[1,5-a]pyrimidine, Pyrimido[1,2-a]benzimidazole, Triazolo[4,3-a]pyrimidine and Pyrido[1,2-a]benzimidazole Derivatives Incorporated Phenylsulfonyl Moiety
作者:Mohamed R. Shaaban
DOI:10.3987/com-08-11471
日期:——
4-triazole (7) and 2-aminobenzimidazole (11) to afford new pyrazolo[1,5-a]pyrimidine, triazolo[4,3-a]pyrimidine and pyrimido[1,2-a]benzimidazole derivatives 4a-e, 9 and 12, respectively. Also, 3-(dimethylamino)-2-(phenylsulfonyl)acrylonitrile (2) reacts with 2-(1H-benzimidazol-2-yl)acetonitrile (13) to give the corresponding pyrido[1,2-a]benzimidazole derivative 15. Some of the newly synthesized compounds
Synthesis and Antimicrobial Evaluation of Some New Cyclooctanones and Cyclooctane-Based Heterocycles
作者:Korany A. Ali、Hanaa M. Hosni、Eman A. Ragab、Sherein I. Abd El-Moez
DOI:10.1002/ardp.201100186
日期:2012.3
intermediate for the synthesis of cyclooctanones and cyclooctane‐basedheterocycles with pyrazole, isoxazole, pyrimidine, pyrazolopyrimidine, triazolopyrimidine and imidazopyrimidine derivatives via its reactions with several nitrogen nucleophiles. The newly synthesized compounds were screened in vitro for their antimicrobial activity against pathogenic microorganisms (Listeria monocytogenes, methicillin‐resistant
Design and Synthesis of Some New Pyrazolo[1,5-<i>a</i>]pyrimidines, Pyrazolo[5,1-<i>c</i>]triazines, Pyrazolo[3,4-<i>d</i>]pyridazines, and Isoxazolo[3,4-<i>d</i>]pyridazines Containing the Pyrazole Moiety
作者:Abdou O. Abdelhamid、Abdelgawad A. Fahmi、Karema N. M. Halim
DOI:10.1080/00397911.2011.616639
日期:2013.4.18
Abstract GRAPHICAL ABSTRACT
摘要图形抽象
A New Synthesis of Amino Substituted Azolo[1,3,5]triazines via Reaction of N1,N1-Dimethyl-N2-azolylformamidines with Cyanamide
作者:Anton V. Dolzhenko、Dmitrii V. Kalinin、Svetlana A. Kalinina
DOI:10.3987/com-12-12601
日期:——
The amino substituted triazine ring was annelated to aminoazoles using a new effective synthetic procedure. The method of preparation involved initial formation of azolylformamidines in the reaction of aminoazoles with N,N-dimethylformamide dimethyl acetal followed by the triazine ring closure with cyanamide affording therefore fused aminotriazines.
Saleh; Elkholy; Mohamed, Egyptian Journal of Chemistry, 2009, vol. 52, # 2, p. 277 - 288