Enantioselective ethylation of aldehydes using a regenerable polymer-supported N-picolylvalinol tridentate ligand
作者:Vinciane Kelsen、Philippe Pierrat、Philippe C. Gros
DOI:10.1016/j.tet.2007.07.077
日期:2007.10
A supported pyridine-based tridentate chiral ligand has been prepared and evaluated for enantioselective addition of diethylzinc to aldehydes. The catalyst allowed the preparation of various chiral alcohols with the R configuration in good yields and enantiomeric excesses (up to 93%) and was found reusable. (C) 2007 Elsevier Ltd. All rights reserved.