Tetrahedron

Photoinduced reactions—LXIX: The photochemical transposition of 2, 6-di-t-butylphenols through their ketone tautomers

T Matsuura, Y Hiromoto, A Okada, K Ogura

Index: Matsuura,T. et al. Tetrahedron, 1973 , vol. 29, p. 2981 - 2987

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Citation Number: 9

Abstract

2, 6-Di-t-butylphenol and its 4-substituted derivatives (1) have been shown to undergo novel photochemical transposition to isomeric phenols 2 and 3, being accompanied by de-t- butylation to give 4. Involvement of the triplet excited state of 1 was confirmed by sensitization and quenching experiments. Evidence is presented for the initial tautomerization of 1 to the ketonic tautomers which undergo further photochemical ...