133150-18-2

Upstream product

• 72091-41-9 (Oxomethylen)malonsaeure-diethylester 
• 133150-11-5 4-benzyl-5-benzylimino-2-phenyl-1,2,4-thiadiazolidin-3-one 
• 55000-05-0 5-benzylimino-1,2,4-dithiazolidin-3-one 

Relevant academic research and scientific papers

Cycloaddition-Elimination Reactions of 5-Imino-1,2,4-dithiazolidin-3-ones with Heterocumulenes

5-Benzylimino-1,2,4-dithiazolidin-3-one (2a) reacts with heterocumulenes (isocyanates, isothiocyanates, ketenes) with elimination of carbonyl sulfide, yielding the heterocycles 6-8.The thiadiazolidine 6a, obtained from 2a and phenyl isocyanate, underwent similar reactions but under milder conditions, indicating that phenyl isocyanate is a better leaving group than carbonyl sulfide.