Acylation of N′-arylbenzothiohydrazides and of their N′-acyl-derivatives; 2-acylalkylidene-3-aryl-5-phenyl-2H-1,3,4-thiadiazolenes and related compounds
作者:Patrick D. Callaghan、Arthur J. Elliott、Sham S. Gandhi、Martin S. Gibson、Harold Mastalerz、Darko J. Vukov
DOI:10.1039/p19810002948
日期:——
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.