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Paper | Regular issue | Vol 26, No. 1, 1987, pp.147-156
Published online, 1st January, 1970
DOI: 10.3987/R-1987-01-0147
■ Photoreactions of Phthalimide-thietanes: Fission of the Thietane Ring and Formation of 1,2-Dithianes

Minoru Machida, Kazuaki Oda, Eiichi Yoshida, and Yuichi Kanaoka

*Faculty of Pharmaceutical Scicences, Higashinihonngakuen University, 1757 Kanazawa, Toubetu-cho, Ishikari-gun, Hokkaodo 061-0212, Japan

Abstract

Photolysis of N-methylmonothiophthalimide (1) in the presence of thletane (4) gave 1,2-dithiane (5) and 1,3-dithiane (6) . The formation of 1,2-dithianes in the photoreaction of 1 with styrene derivatives (2) is explained in terms of the
intermediacy of the phthalimide-thietanes. Photolysis of the thietane ring is also described.