SYNTHESIS OF HETEROCYCLIC COMPOUNDS FROM DIPOTASSIUM 1,1-DIMERCAPTO-2,2-DICYANOETHYLENE

Abstract

The reaction of dipotassium 1,1-dimercapto-2,2-dicyanoethylene with 3-bromo-1-propyne, 3-chloro-3-methyl-1-propyne, 3-chloro-2,4-pentanedione, ethyl α-chloroacetoacetate or chloroacetone afforded novel heterocyclic compounds (1–5). Possible mechanisms and supporting NMR and mass spectra are discussed.