Chiral unsymmetric diphosphine compound and transition metal com

Details Chiral unsymmetric diphosphine compound and transition metal com Chiral unsymmetric diphosphine compound and transition metal com

1996-07-18

1998-09-15

Lambkin, Deborah C.

Organic compounds -- part of the class 532-570 series

Organic compounds

Phosphorus containing

568 17, 546 22, 549 5, 549 6, 549220, C07F 502, C07F 906, C07F 928, C07D32700

Patent

active

058081623

ABSTRACT:
A novel chiral unsymmetric diphosphine compound of formula (I): ##STR1## wherein Ar.sup.1 and Ar.sup.2, which are different from each other, each represent a substituted or unsubstituted phenyl group, a substituted or unsubstituted naphthyl group, a pyridyl group, a quinolyl group, an isoquinolyl group, a furfuryl group, a benzofurfuryl group, a thienyl group, or a benzothienyl group, and a transition metal complex containing the diphosphine compound as a ligand. The complex catalyzes various asymmetric synthesis reactions, e.g., asymmetric hydrogenation or asymmetric hydrosilylation, exhibiting excellent performance in selectivity, conversion and catalytic activity, to provide a product of desired absolute configuration at high optical purity and in high yield.

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