Synthesis and antimicrobial evaluation of some 1,2,4-triazole, 1,3,4-oxa(thia)diazole, and 1,2,4-triazolo[3,4-b]-1,3,4-thiadiazine derivatives
作者:Kamal M. Dawood、Ahmad M. Farag、Hatem A. Abdel-Aziz
DOI:10.1002/hc.20162
日期:——
thiazolidine-2-thione 9 derivatives, respectively. The reaction of either 1,3,4-oxadiazole-5-thione 4 or 4-amino-1,2,4-triazole-5-thione 5 with phenacyl bromide resulted in the formation of 1,2,4-triazolo[3, 4-b]-1,3,4-thiadiazine derivative 8. Treatment of compounds 3 or 4 with hydrazonoyl halides 10a–d furn- ished the same 1,3,4-thiadiazol-2-ylidene derivatives 11a–d. The 7-arylhydrazono-1,2,4-triazolo[3,4-b]-1, 3
3-甲基-2-苯并呋喃甲酰肼 (2) 与二硫化碳和氢氧化钾反应生成相应的二硫代碳化钾盐 3。用盐酸、水合肼和苯酰溴处理后一种盐,得到分别为相应的 1,3,4-oxadiazole-5-thione 4、4-amino-1,2,4-triazole-5-thione 5 和 thiazolidine-2-thione 9 衍生物。1,3,4-恶二唑-5-硫酮 4 或 4-氨基-1,2,4-三唑-5-硫酮 5 与苯甲酰溴反应生成 1,2,4-三唑[3 , 4-b]-1,3,4-噻二嗪衍生物 8. 用腙酰卤化物 10a-d 处理化合物 3 或 4 得到相同的 1,3,4-噻二唑-2-亚基衍生物 11a-d。7-芳基腙-1,2,4-三唑并[3,4-b]-1, 3, 4-噻二嗪衍生物 12a-d 通过用腙酰卤化物 10a-d 处理 4-氨基-1,2,4-三唑-5-硫酮 5 或通过偶联 1,2,4-三唑[3