Optically active diphosphine, transition metal complex containing the same, and process for producing optically active compound using the complex
申请人:Takasago International Corporation
公开号:EP0839818A1
公开(公告)日:1998-05-06
Disclosed are an optically active diphosphine represented by formula:
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 δ-oxo-α-cyano ester using the transition metal complex as a catalyst.