Untitled

Abstract

In this work we studied the reaction of carbohydrazides with some reagents having electrophilic centers such as arylmethylenemalononitrile, aromatic aldehydes, bis(methylthio)methylenemalononitrile, dimethyl acetylene-dicarboxylate and cyanoguanidine. The resulting products are five-membered heterocyclic rings such as thiadiazoles, thiazoles, triazoles; and six-membered heterocyclic rings such as triazines.