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Note | Regular issue | Vol 63, No. 9, 2004, pp.2097-2100
Published online, 26th July, 2004
DOI: 10.3987/COM-04-10154
Enantioselective Hydrogenation of 3,4-Dihydro-β-carbolines Catalyzed by Ir Complexes of Diphosphine

Toshiaki Morimoto,* Naoaki Suzuki, and Kazuo Achiwa

*School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Shizuoka-shi 422-8526, Japan

Abstract

A catalytic system, Ir(I)-BINAP-tetrafluorophthalimide, was found to be very efficient in the asymmetric hydrogenation of 3,4-dihydro-1-methyl-β-carbolines, showing high enantioselectivity of 95% ee.