Bulletin of the Chemical Society of Japan

Photo-Aryl Coupling and Related Reactions. II. The Formation of Triphenylenes from Halogeno-o-terphenyls

T Sato, S Shimada, K Hata

Index: Sato,T. et al. Bulletin of the Chemical Society of Japan, 1969 , vol. 42, p. 766 - 772

Full Text: HTML

Citation Number: 27

Abstract

Electronic effects on the photochemical conversion of o-terphenyl to triphenylene were examined by comparing the ultraviolet irraiation reaction, carried out in a benzene solution using iodine as an oxidant, of three classes of o-terphenyl derivatives, 4-(3) and 4′- substituted (4) and 4, 4 ″-disubstituted derivatives (5). While a strong electron-withdrawing group such as nitro group, hindered the cyclization reaction to occur, methoxy, fluoro, ...