Chemical and Pharmaceutical Bulletin p. 2921 - 2926 (1992)
Update date:2022-07-30
Topics: Synthesis Characterization Scale-up Publication and Patenting Design Motivation Catalytic Evaluation
Inoguchi
Fujie
Yoshikawa
Achiwa
A new chiral 1,3-bisphosphine, (1R,2R)-1-diphenylphosphino-2-(diphenylphosphinomethyl)cyclopentane, which was designed to form the favorable skew conformation of the six-membered chelate with rhodium, was developed. Its rhodium complex was found to be one of the most efficient catalysts known for asymmetric hydrogenation of amino acid precursors. Further improvement of this ligand was also attempted for catalytic asymmetric hydrogenation of prochiral ketones to clarify the enantioselective mechanism.
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