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Highly Enantioselective Transfer Hydrogenation of Quinolines Catalyzed by Gold Phosphates: Achiral Ligand Tuning and Chiral-Anion Control of Stereoselectivity

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  • We are grateful for financial support from NSFC (21172207), MOST (973 project 2010CB833300), BASF, and the Ministry of Education.

Abstract

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A little gold goes a long way: As little as 0.01 mol % of chiral gold phosphate is sufficient to afford the asymmetric transfer hydrogenation of quinolines with high stereoselectivity (up to 98 % ee). The achiral ligands on gold were found to have considerable effect on the catalytic efficiency.

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