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Paper | Regular issue | Vol 41, No. 4, 1995, pp.773-779
Published online, 1st January, 1970
DOI: 10.3987/COM-94-6991
Oxidation of 1,2,3,4-Tetrahydroisoquinolines to 3,4-Dihydroisoquinolines with Molecular Oxygen Catalyzed by Copper(Ö†) Chloride

Masao Shimizu, Hideo Orita, Takashi Hayakawa, Kunio Suzuki, and Katsuomi Takehira

*National Institute of Materials and Chemical Research, 1-1, Higashi, Tsukuba, Ibaraki 305, Japan

Abstract

A catalytic oxidation system, a CuCl2-O2 system, was efficient for dehydrogenation of 1,2,3,4-tetrahydroisoquinolines to 3,4-dihydroisoquinolines. Oxidation of 1,2,3,4-tetrahydroquinoline was also carried out.