Preparation and application of a novel type of chiral bisphosphine ligand (NORPHOS-7X) containing a hetero-Functional group

Article abstract of DOI:10.1055/s-1997-6152

A new chiral bisphosphine ligand containing a carboxyl group has been prepared by use of a silver-ion catalyzed rearrangement as a key step. And it has been applied to the rhodium-catalyzed asymmetric hydrogenation of the C=N double bond of N-benzoylhydra