Asymmetric Counteranion-Directed Catalysis

Mayer, Sonja; List, Benjamin

doi:10.1002/anie.200600512

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Asymmetric Counteranion-Directed Catalysis

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Mayer, Sonja
Research Department List, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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List, Benjamin
Research Department List, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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引用

Mayer, S., & List, B. (2006). Asymmetric Counteranion-Directed Catalysis. Angewandte Chemie International Edition, 45(25), 4193-4195. doi:10.1002/anie.200600512.

引用: https://hdl.handle.net/11858/00-001M-0000-0014-A46A-A

要旨

Exceedingly high enantioselectivity in a catalytic reaction can be realized even when the chirality resides only in the counteranion of the catalyst. A salt (1) composed of an achiral ammonium cation and a chiral phosphate counteranion catalyzes asymmetric transfer hydrogenations of aromatic and aliphatic α,β‐unsaturated aldehydes with a Hantzsch ester in excellent enantioselectivities (see scheme).