Tetrahedron letters

Electron-transfer induced intramolecular [2+ 2] cyloaddition of 2, 6-diarylhepta-1, 6-dienes

Y Takahashi, O Okitsu, M Ando, T Miyashi

Index: Takahashi; Okitsu; Ando; Miyashi Tetrahedron Letters, 1994 , vol. 35, # 23 p. 3953 - 3956

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Citation Number: 14

Abstract

Abstract Intramolecular [2+ 2] cycloaddition of 2, 6-diaryl-1, 6-heptadienes 1a–c to bicycloheptanes 2 can be induced by electron-transfer photosensitization with 9, 10- dicyanoanthracene. A stepwise mechanism involving cyclic, 1, 4-cation radical 3 has been proposed based on the trapping experiments.