Research on unsaturated lactones. 49. Synthesis of thiazolidines that contain an α,β-unsaturated γ-lactone ring
The corresponding thiazolidines containing a lactone ring and their hydrochlorides and N-benzoyl derivatives were obtained by the reaction of 2-acetyl-3,4,4-trimethyl-2-buten-4-olide with thioglycolic or mercaptosuccinic acids and ammonium carbonate.