Synthesis of 3,3′-bi-1,2,4-triazolo[4,5-a]-benzimidazole, 5,5′-bi-1,3,4-thiadiazole, and thiazolo[3,2-a]benzimidazole derivatives

被引：24

作者：

Dawood, KM

Raslan, MA

Farag, AM ^{[1
]}

机构：

[1] Cairo Univ, Fac Sci, Dept Chem, Giza 12613, Egypt

[2] Fac Sci, Dept Chem, Aswan, Egypt

来源：

SYNTHETIC COMMUNICATIONS | 2003年 / 33卷 / 23期

关键词：

bis-hydrazonoyl chlorides; biheterocycles; thiazoles; benzothiazoles; benzimidazoles;

D O I：

10.1081/SCC-120026349

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A series of novel 3,3'-bi-1,2,4-triazolo[4,5-a]benzimidazole and thiazolo[3,2-a]-benzimidazole derivatives were synthesized via the reaction of bis-hydrazonoyl chlorides with 2-methylthiobenzimidazole and with benzimidazol-2-thiol, respectively. A direct synthesis of 5,5'-bi-1,3,4-thiadiazole and 4,5-bis-phenylhydrazono-2,3,4,5-tetrahydrothiazole derivatives is also described.

引用

页码：4079 / 4086

页数：8

共 14 条

[1] REACTION OF PHENYLISOTHIOCYANATE WITH ALPHA-HETARYL NITRILES AND KETONES [J].