Asymmetric hydrogenation of ketones using Ir(III) complexes of N-alkyl-N’-tosyl-1,2-ethanediamine ligands
摘要:
The combination of an enantiomerically pure N'-alkylated derivative of N-4-toluenesulfonyl-1,2-diphenylethane-1,2-diamine (TsDPEN) with iridium trichloride results in the formation of a catalyst with high selectivity for ketone hydrogenation. Products with enantiomeric excesses of up to 84% were formed. The best results were obtained using a ligand with an n-alkyl chain and ortho-substituted acetophenone derivatives and other hindered derivatives. (C) 2008 Elsevier Ltd. All rights reserved.
[EN] COMPLEXES AND METHODS FOR THEIR PREPARATION<br/>[FR] COMPLEXES ET LEURS PROCÉDÉS DE PRÉPARATION
申请人:JOHNSON MATTHEY PLC
公开号:WO2016042298A1
公开(公告)日:2016-03-24
The invention provides methods for the preparation of ligands for complexes, methods for preparing complexes and complexes having those ligands. Also provided is the use of a complex as a catalyst in a method of synthesis.