INVESTIGATIONS ON THE REACTIONS OF THIOAMIDES AND RELATED 1,3-DIAZABUTA-1,3-DIENES WITH DIMETHYL ACETYLENEDICARBOXYLATE:SYNTHESIS OF NOVEL FUNCTIONALIZED HETEROCYCLES

摘要

The manuscript describes an investigation on the reaction pathways followed in the reactions of variedly substituted thioamides and the corresponding 1,3-diazabuta-1,3-dienes with dimethyl acetylene dicarboxylate.The mechanistic rationales for the reactions pathways followed have been plausibly explicated.The study assumes considerable significance because of the formation of novel functionalized heterocycles.