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Journal Article

Asymmetric Counteranion-Directed Transition-Metal Catalysis: Enantioselective Epoxidation of Alkenes with Manganese(III) Salen Phosphate Complexes

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Liao,  Saihu
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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Citation

Liao, S., & List, B. (2010). Asymmetric Counteranion-Directed Transition-Metal Catalysis: Enantioselective Epoxidation of Alkenes with Manganese(III) Salen Phosphate Complexes. Angewandte Chemie International Edition, 49(3), 628-631. doi:10.1002/anie.200905332.


Cite as: https://hdl.handle.net/11858/00-001M-0000-000F-8DB3-E
Abstract
Paired up: A highly active and enantioselective ion‐pair epoxidation catalyst, consisting of an achiral MnIII–salen complex and a chiral phosphate counteranion, mediates the epoxidization of a wide range of alkenes with high yields and enantioselectivities (see scheme). The unique role of the counteranion is to stabilize an enantiomorphic conformation of the cationic Mn catalyst.