1986•Chemistry LettersRequires access

PHOTOSENSITIZED DIMERIZATION OF PHENOL IN PORPHYRIN–QUINONE–PHENOL SYSTEM

Kazuhiro Maruyama, Hiroyuki Furuta

Abstract

Abstract Photosensitized dimerization of 4-methoxyphenol was observed upon irradiation of porphyrin in the presence of quinone. Quantum yield for dimer was depended upon the concentration and reduction potential of quinones used. Free radical coupling mechanism was confirmed by means of ESR and CIDNP techniques.

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Key concepts: Chemistry, Phenol, Porphyrin, Quinone, Photochemistry, Organic chemistry