Enantioselective MSPV Reduction of Ketimines Using 2-Propanol and (BINOL)AlIII
摘要:
A highly enantioselective Meerwein-Schmidt-Ponndorf-Verley (MSPV) reduction of N-phosphinoyl ketimines by (BINOL)Al-III/2-propanol is reported. Yields ranging between 79 and 85% with high enantiomeric excesses (93-98%) are observed for a wide range of structurally diverse ketimines. A [2.0.4] bicyclic chelation model is proposed to account for this high selectivity.
Enantioselective Reduction of Ketones and Imines Catalyzed by (CN-Box)ReV-Oxo Complexes
作者:Kristine A. Nolin、Richard W. Ahn、Yusuke Kobayashi、Joshua J. Kennedy-Smith、F. Dean Toste
DOI:10.1002/chem.201001164
日期:2010.8.16
application of chiral, non‐racemic ReV–oxo complexes to the enantioselectivereduction of prochiral ketones is described. In addition to the enantioselectivereduction of prochiral ketones, we report the application of these complexes to 1) a tandem Meyer–Schuster rearrangement/reduction to access enantioenriched allylic alcohols and 2) the enantioselectivereduction of imines.
描述了手性非外消旋 Re V - oxo 配合物在前手性酮的对映选择性还原中的开发和应用。除了前手性酮的对映选择性还原外,我们还报告了这些复合物在以下方面的应用:1)串联 Meyer-Schuster 重排/还原以获取对映体富集的烯丙醇和 2)亚胺的对映选择性还原。
Asymmetric reduction of phosphinyl imines with hydride reagents. Enantioselective synthesis of chiral primary amines
作者:Robert O. Hutchins、Ahmed Abdel-Magid、Yuriy P. Stercho、Anthony Wambsgans
DOI:10.1021/jo00380a047
日期:1987.2
HUNCHINS R. O.; ABDEL-MAGID AHMED; STERCHO Y. P.; WAMBSGANS A., J. ORG. CHEM., 52,(1987) N 4, 702-704
作者:HUNCHINS R. O.、 ABDEL-MAGID AHMED、 STERCHO Y. P.、 WAMBSGANS A.