The previously investigated reactions of N-unsubstituted sulfilimines include oxidation,'r2 hydrolysis, l-3 thermolysis, 1-3 N-tosylation, and reaction with carbon dioxide and carbon disulfide.'As our contribution to this relatively unexplored area, we have examined the nucleophilic reactions of the N-unsubstituted sulfilimine with acylating agents, 2, 4- dinitrohalobenzenes, and some activated alkynes and alkenes. The present work was ...