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Communication | Special issue | Vol 56, No. 1-2, 2002, pp.69-72
Published online, 1st January, 1970
DOI: 10.3987/COM-01-S(K)20
■ 2-Pyridone Ring Formation through the Photoreaction of Arenecarbothioamides with Unsaturated Carboxylic Acids

Kazuaki Oda,* Rikiji Nakagami, Naozumi Nishizono, and Minoru Machida

*Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Hokkaido 061-0293, Japan

Abstract

Irradiation of arenecarbothioamides with 2,4-hexadienoic acid in benzene gives 2-pyridone derivatives in moderate yields. The corresponding benzo-fused 2-pyridone derivative was also obtained by use of o-vinylbenzoic acid as dienoic acid equivalent.