Issue 0, 1970
From the journal:

Journal of the Chemical Society A: Inorganic, Physical, Theoretical


The photochemistry of two phytyl quinones: α-tocopherylquinone and vitamin K1

Gordon Leary  and  George Porter  

Abstract

The photochemistry of α-tocopherylquinone and of vitamin K1 has been investigated by steady-state and flash-photolysis techniques. In both quinones, in addition to the formation of semiquinones by reaction with solvent, transients assigned to hydroxy-ortho-quinone methides (or their anions) are observed. The ortho-quinone methide from α-tocopherylquinone was only observed in polar solvents and seems to arise by proton transfer following an initial intramolecular hydrogen abstraction. With vitamin K1. the ortho-quinone methide was the dominant transient in all solvents. The possible relevance of this reaction to photosynthesis is briefly discussed.

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Article information

DOI
https://doi.org/10.1039/J19700002273
Article type
Paper

J. Chem. Soc. A, 1970, 2273-2278

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The photochemistry of two phytyl quinones: α-tocopherylquinone and vitamin K1

G. Leary and G. Porter, J. Chem. Soc. A, 1970, 2273 DOI: 10.1039/J19700002273

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