Chemistry Letters p. 855 - 858 (1987)
Update date:2022-08-11
Topics:
Takahashi, Hisashi
Morimoto, Toshiaki
Achiwa, Kazuo
Synthesis of new chiral pyrrolidinebisphosphine-rhodium complexes and their application to the asymmetric hydrogenations of α-keto esters and an α-keto acetal are described.Among them, MCCPM-Rh gave the highest optical yield (87 percent) of the α-hydroxy ester and MCPM-Rh gave the 75 percent optical yield of the α-hydroxy acetal at the substrate to catalyst ratio (1000 : 1).
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