Catalytic asymmetric hydrogenation of 1-aza-2-cycloalkene-2-carboxylates catalyzed by a trans-chelating chiral diphosphine PhTRAP-rhodium complex
作者:Ryoichi Kuwano、Daisuke Karube、Yoshihiko Ito
DOI:10.1016/s0040-4039(99)01719-0
日期:1999.12
A rhodium complex coordinated with a trans-chelating chiral diphosphine (S,S)-(R,R)-PhTRAP was an effective catalyst for asymmetrichydrogenation of N-acyl-1-aza-2-cycloalkene-2-carboxylates, which gave the corresponding protected cyclic α-amino acids with 73–97% ee.