Studies on Mesoionic Compounds. XIII. Synthesis of Mesoionic 1, 2, 3-Thiadiazolium-4-thiolates

Abstract

New mesoionic heterocycles, 3-aryl- and 3-alkyl-1, 2, 3-thiadiazolium-4-thiolates (4 and 8), were synthesized by two different procedures. Some of the S-methyl derivatives of these compounds gave the corresponding mesoionic 4-olate derivatives on alkaline hydrolysis.