Asymmetric Reactions Catalyzed by Chiral Metal Complex. LIX. Preparations of Chiral Pyrrolidinebisphosphines Bearing Two Different Types of Phosphino Groups and Their Use in Efficient Catalytic Asymmetric Hydrogenation.
Synthesis of a New Chiral Pyrrolidine Ligand Bearing Two Different Types of Phosphino Groups and Their Effects on the Asymmetric Hydrogenation of Ketopantolactone
The respective functions of the two phosphino groups of the pyrrolidinebisphosphine ligands in the asymmetric hydrogenation of ketopantolactone were elucidated.