论文部分内容阅读
6/3-(4-Chlorophenyl)-s-triazolo[3, 4-b][1, 3, 4]thiadiazoles (2a-e) and (5a-e) were synthesized respectively by intermolecular cyclization of 5-aryl / 4-chlorophenyl-4-amino-3-mercapto-1, 2, 4-triazoles (1a-e) and (4) with 4-chlorobenzoic acid / aryl acid