Optically active diphosphine, transition metal complex containin

Details Optically active diphosphine, transition metal complex containin Optically active diphosphine, transition metal complex containin

1997-10-22

1998-08-04

Nazario-Gonzalez, Porfirio

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

Organic compounds

Heavy metal containing

556 21, 556136, 560160, 560174, 560243, 560247, 560 19, 560 51, 568 13, 568 17, C07F 1500, C07F 902, C07C26100

Patent

active

057896097

ABSTRACT:
Disclosed are an optically active diphosphine represented by formula: ##STR1## wherein R represents a lower alkyl group having 1 to 4 carbon atoms; Ar represents a phenyl group which may be substituted with a lower alkyl group having 1 to 4 carbon atoms and/or a lower alkoxy group having 1 to 4 carbon atoms, a transition metal complex containing the diphosphine as a ligand, and a process for producing an optically active .delta.-oxo-.alpha.-cyano ester using the transition metal complex as a catalyst.

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