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
Chiral phosphine-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-keto esters using oxaziridine 2a as the oxidant to give the corresponding products in high yields along with moderate enantioselectivities.
发现由(R)-(-)-2-(二苯基膦基)-1,1'-联萘基-2'-胺制备的手性膦-席夫碱型配体L1是Cu(I)-的相当有效的配体恶唑烷2a作为氧化剂促进β-酮酯的对映选择性α-羟基化,从而以高收率和适度的对映选择性提供相应的产物。