Photo-Arylation. IV. Synthesis of 2-Arylpyridines by Photo-Reaction of 2-Iodopyridine with Substituted Benzenes

Abstract

Photolysis of a mixture of 2-iodopyridine and a variety of substituted benzenes in dichloromethane afforded the corresponding 2-arylpyridines as isomeric mixtures. Based on the isomer distributions of the products and the formation of 2-chloropyridine as a by-product, the reactivity of 2-iodopyridine in the present reaction was suggested to be electrophilic in character.