Chemoenzymatic synthesis of a novel ligand for rhodium-catalysed asymmetric hydrogenation

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Brian Adger, Ulrich Berens, Matthew J. Griffiths, Michael J.K elly, Ray McCague, John A. Miller, Christopher F. Palmer, Stanley M. Roberts, Rüdiger Selke, Ute Vitinius and Guy Ward


Abstract

The hydrogenation of alkenes 7a–g using a chiral rhodium catalyst 6 (based on a bicyclo[3.2.0]heptane framework) takes place to give the phenylalanine derivatives 8a–g with remarkably high stereoselectivity (59–92% ee).


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