Abstract

Photoreactions of aromatic hydrocarbons initiated by electron transfer with electron donors and acceptors are reviewed from the synthetic point of view as well as from the aspects of chemical behaviors of photo-generated ion radicals in comparison with chemical redox reactions and electrochemical reactions. This review describes ; (1) a brief discussion concerning general requirements for efficient photochemical generation of ion radicals, (2) photoreactions of aromatic hydrocarbons and halides with amines which give rise to reductions and coupling reactions, (3) photoreactions of aromatic hydrocarbons with nucleophiles in the presence of electron acceptors which involve direct cyanation by sodium cyanide, efficient Birch-type reductions by sodium borohydride, and facile amination by ammonia via cation radicals, and (4) redox- photosensitized reactions of olefinic and furan compounds by aromatic hydrocarbons.

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