N-acyl-derivatives with carboxylic anhydrides under various sets of conditions are shown to lead to 2-acylalkylidene-3-aryl-5-phenyl-2H-1,3,4-thiadiazolenes. The probable mechanism of formation of these compounds via the corresponding 2-alkylidenethiadiazolene as intermediate is discussed.
的反应Ñ '-arylbenzothiohydrazides和它们的Ñ酰基衍
生物与下各组条件
羧酸酐被示为导致2- acylalkylidene -3-芳基-5-
苯基-2- ħ -1,3,4- thiadiazolenes。讨论了通过相应的2-烷基亚乙基
噻二唑作为
中间体形成这些化合物的可能机理。