Cu(I)-catalyzed asymmetric α-hydroxylation of β-keto esters in the presence of chiral phosphine-Schiff base-type ligands
作者:Jia-Jun Jiang、Jian Huang、De Wang、Mei-Xin Zhao、Fei-Jun Wang、Min Shi
DOI:10.1016/j.tetasy.2010.05.011
日期:2010.4
Chiralphosphine-Schiff base-type ligand L1 prepared from (R)-(−)-2-(diphenylphosphino)-1,1′-binaphthyl-2′-amine was found to be a fairly effective ligand for Cu(I)-promoted enantioselective α-hydroxylation of β-ketoesters using oxaziridine 2a as the oxidant to give the corresponding products in high yields along with moderate enantioselectivities.