Photoinduced skeletal rearrangement of 1, 1-diarylspiropentanes

…, S Morishima, T Suzuki, H Ikeda, T Miyashi

Index: Takahashi, Yasutake; Ohaku, Hitoshi; Morishima, Shin-Ichi; Suzuki, Takanori; Ikeda, Hiroshi; Miyashi, Tsutomu Journal of the Chemical Society - Perkin Transactions 1, 1996 , # 4 p. 319 - 325

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Citation Number: 8

Abstract

The photochemical reactivities of 1, 1-diarylspiropentanes 1a–c have been investigated under various photolysis conditions. Upon direct photolysis or acetone-sensitized photolysis, 1 underwent skeletal rearrangement to afford methylidenecyclobutanes 2, 3 and 4. A mechanism involving diradical intermediates has been proposed. Also studied were the photochemical and thermal reactions of the electron donor–acceptor (EDA) complexes of ...