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Communication | Regular issue | Vol 3, No. 5, 1975, pp.389-394
Published online, 1st January, 1970
DOI: 10.3987/R-1975-05-0389
Reaction Pathway in the Photorearrangements of Phenylisothiazoles

Minoru Maeda, Akira Kawahara, Masaaki Kai, and Masaharu Kojima*

*Faculty of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan


In the photorearrangement of 5-phenylisothiazole (III) in ether-deuterium oxide system, deuterium was incorporated into the product, 3-phenylisothiazole (I). It is supported that the photorearrangements of phenylisothiazoles proceed through tricyclic sulphonium cation intermediates.