Ring-Splitting Reaction of 2, 2-Diarylthietane by Electron-Transfer Photosensitization of 9, 10-Dicyanoanthracene.

…, A Sazaki, K Nakabayashi, M Yasuda

Index: Shima, Kensuke; Sazaki, Akira; Nakabayashi, Kenichi; Yasuda, Masahide Bulletin of the Chemical Society of Japan, 1992 , vol. 65, # 5 p. 1472 - 1474

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Citation Number: 7

Abstract

A 9, 10-dicyanoanthracene (DCA)-photosensitized reaction of 3-cyano-or 3-ethoxy-2, 2- diarylthietane in acetonitrile gave selectively 2-cyano-or 2-ethoxy-1, 1-diarylethene. The ring- splitting reaction proceeds via a one-electron oxidation of the sulfur atom of thietane ring by a photochemical electron transfer to the excited singlet state of DCA.