Helvetica Chimica Acta

Synthesis of Novel Disubstituted Pyrazolo [1, 5??a] pyrimidines, Imidazo [1, 2??a] pyrimidines, and Pyrimido [1, 2??a] benzimidazoles Containing Thioether and Aryl …

G Li, ZT Zhang, LY Dai, YL Du, D Xue

文献索引：Li, Gang; Zhang, Zun-Ting; Dai, Li-Yan; Du, Yin-Li; Xue, Dong Helvetica Chimica Acta, 2012 , vol. 95, # 6 p. 989 - 997

全文：HTML全文

被引用次数: 1

摘要

Abstract A series of novel 6-[(1, 3, 4-thiadiazol-2-yl) sulfanyl]-7-phenylpyrazolo [1, 5-a] pyrimidines, 5-phenyl-6-[(1, 3, 4-thiadiazol-2-yl) sulfanyl] imidazo [1, 2-a] pyrimidines, and 2- phenyl-3-[(1, 3, 4-thiadiazol-2-yl) sulfanyl] pyrimido [1, 2-a] benzimidazoles have been synthesized in four steps starting with 2-hydroxyacetophenone. The intermediate 3-[(1, 3, 4- thiadiazol-2-yl) sulfanyl]-4H-1-benzopyran-4-ones reacted with pyrazol-3-amines, 5- ...