Enantioselective Access to Chiral Drugs by using Asymmetric Hydrogenation Catalyzed by Rh(POP) Complexes
作者:Pablo Etayo、José Luis Núñez-Rico、Héctor Fernández-Pérez、Anton Vidal-Ferran
DOI:10.1002/chem.201103014
日期:2011.12.9
POP art: Rhodium complexes of POP ligands serve as highly efficient and enantioselective catalysts in asymmetrichydrogenation leading to various valuable pharmaceutical building blocks and several direct precursors of chiraldrugs such as LY2497282, lacosamide, rivastigmine, and aprepitant and 12 further examples (see scheme; nbd=norbornadiene; XC(O)G=NHAc, NHBoc, NHCbz, 2‐oxopyrrolidin‐1‐yl, OAc)
P OP艺术:P的铑络合物 OP配体充当在不对称氢化作为高效和对映选择性的催化剂导致各种有价值的药物积木和手性药物如LY2497282,拉考沙胺,利凡斯的明,和阿瑞匹坦和12个进一步示例几个直接前体(参见方案; nbd =降冰片二烯; XC(O)G = NHAc,NHBoc,NHCbz,2-氧吡咯烷-1--1-基,OAc)。
P-Stereogenic <i>N</i>-Phosphine–Phosphite Ligands for the Rh-Catalyzed Hydrogenation of Olefins
作者:Maria Biosca、Pol de la Cruz-Sánchez、Oscar Pàmies、Montserrat Diéguez
DOI:10.1021/acs.joc.9b03508
日期:2020.4.3
We have identified a successful family of simple P-stereogenic N-phosphine-phosphite ligands for the Rh-catalyzed asymmetric hydrogenation of olefins. These catalysts show excellent enantiocontrol for alpha-dehydroamino acid derivatives and aenamides (ee's up to >99%) and promising results for the more challenging beta-analogues (ee's up to 80%). The usefulness of these catalytic systems was further demonstrated with the synthesis of several valuable precursors for pharmacologically active compounds, with ee's at least as high as the best ones reported previously (up to >99%).