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Communication | Regular issue | Vol 78, No. 3, 2009, pp.617-622
Published online, 5th November, 2008
DOI: 10.3987/COM-08-11563
A Chiral “Roofed” cis-Diamine-Ru(II) Complex: An Efficient Catalyst for Asymmetric Transfer Hydrogenation of Ketimines

Hirofumi Matsunaga, Kyoko Nakanishi, Makoto Nakajima, Takehisa Kunieda, and Tadao Ishizuka*

*Faculty of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Kumamoto 862-0973, Japan

Abstract

Highly enantioselective transfer hydrogenation of ketimines to the corresponding chiral amines was achieved with the chiral Ru(II) complex, prepared from the conformationally rigid and sterically bulky “roofed” cis-1,2-diamine.