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■ The Reaction of Thiobenzoyl Isocyanates with N,N’-Diphenylsulfur Diimide

Otohiko Tsuge,* Satoshi Urano, and Shuntaro Mataka

*Research Institute of Industrial Science, Faculty of Engineering, Kyushu University, 6-1, Kasuga-koen, Kasuga 816-8580, Japan

Abstract

Thiobenzoyl isocyanates (1) reacted with N,N’-diphenylsulfur diimide (2) affording phenyl isocyanate (3), 2,5-diaryl-1,3,2,4-dithiadiazoline (4), 5-aryl-1,2,4-dithiazolin-3-one (5), and N-phenyl-N’-thiobenzoylurea (7), along with traces of 2,5-diaryl-1,2,4-thiadiazolin-3-one (6).