Collect. Czech. Chem. Commun. 1983, 48, 1745-1748

Cycloadditions of N,N'-dicyclohexylcarbodiimide to 2-phenylethenyl isothiocyanates

Oľga Hritzová and Ladislav Kniežo

Department of Organic Chemistry and Biochemistry, P. J. Šafárik University, 041 67 Košice


2-Phenylethenyl- and 2-(4-nitrophenyl)ethenyl isothiocyanates undergo a 2 + 2 cycloaddition with N,N'-cyclohexylcarbodiimide to form 1,3-thiazetedine derivatives; this reaction takes place at the C=S bond of the isothiocyanate group. The olefinic C=C bond was not involved.