Studies on 1, 3, 4-Thiodiazole Derivatives. V

Synthesis of Carboxylic Acid Derivatives

Abstract

By the condensation of malonic or succinic ester chlorides respectively with thiosemi-carbazide, in the presence of phosphorus trichloride, ethyl 2-amino-1, 3, 4-thiodiazole-5-acetate and methyl 2-amino-1, 3, 4-thiodiazole-5-propionate were obtained. Their hydrolyses afforded the corresponding acids. Their respective acid amides and acid hydrazides were also prepared.