ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

2-Aryl derivatives of condensed five-membered N-heterocyclic compounds. V. Photolysis of 2- and 4-substituted phenols and naphthols in benzene solution

J. Durmis and M. Karvaš

Research Department, Chemical Works of J. Dimitrov, 810 01 Bratislava

Abstract: Photochemical stability of 2- and 4-substituted phenols containing 2-(4,5)- aryleneazolyl, 2-indolyl, and benzoyl substituents as well as of benzotriazolylnaphthols in benzene solutions was investigated. It was found that, from among the compounds studied, 2-hydroxybenzophenone and 2-(2-benzotriazolyl) phenol were photochemically most stable. The quantum yield of the photolytic decay decreased by about one order of magnitude in the presence of an intramolecular hydrogen bond.

Full paper in Portable Document Format: 276a821.pdf

Chemical Papers 27 (6) 821–828 (1973)