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
作者:Kamal M. Dawood、Mohamed A. Raslan、Ahmad M. Farag
DOI:10.1081/scc-120026349
日期:2003.12.1
Abstract 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.
摘要 通过双腙酰氯与 3,3'-双-1,2,4-三唑并[4,5-a]苯并咪唑和噻唑并[3,2-a]-苯并咪唑反应合成了一系列新型的3,3'-双-1,2,4-三唑并[4,5-a]苯并咪唑和噻唑并[3,2-a]-苯并咪唑衍生物。 2-甲硫基苯并咪唑和苯并咪唑-2-硫醇,分别。还描述了 5,5'-双-1,3,4-噻二唑和 4,5-双-苯基腙-2,3,4,5-四氢噻唑衍生物的直接合成。