Formation of 1,2,5‐Oxadiazole, Isoxazole, Isothiazole, 1,2,3‐Triazole, and Pyrrole Rings from N‐(5,5‐Dimethyl‐3‐oxocyclohexenyl)‐S,S‐diphenylsulfilimine

Abstract

Reactions of N‐(5,5‐dimethyl‐3‐oxocyclohexenyl)‐S,S‐diphenylsulfilimine, a kind of enaminone, with isopentyl nitrite, isocyanates, isothocyanates, benzenediazonium chloride, and 1,1,1‐trifluoro‐4‐ethoxy‐3‐buten‐2‐one gave 1,2,5‐oxadiazole, isoxazole, isothiazole, 1,2,3‐triazole, and pyrrole derivatives condensed with cyclohexane, respectively, in one pot.

Keywords:

• Isothiazole
• isoxazole
• 1,2,5‐oxadiazole
• pyrrole
• sulfilimine
• 1,2,3‐triazole