Synthesis of C2-symmetrical bis-β-amino alcohols and their application in the enantioselective addition of diethylzinc to aldehydes
作者:Qianyong Xu、Hui Wang、Xinfu Pan、Albert S.C Chan、Teng-kuei Yang
DOI:10.1016/s0040-4039(01)01236-9
日期:2001.8
The C-2-symmetrical bis-beta -amino alcohols 1-6 were prepared and especially attention is focused on bridges. which link the two beta -amino alcohol units. These ligands hake been applied as chiral catalysts in the asymmetric addition of diethylzinc to aldehydes. see-Alcohols have been obtained in good yields with up to 95.4%, enantiomeric excess. (C) 2001 Elsevier Science Ltd. All rights reserved.