New Synthetic Strategy for High-Enantiopurity N-Protected α-Amino Ketones and their Derivatives by Asymmetric Hydrogenation
作者:Tian Sun、Guohua Hou、Miaofeng Ma、Xumu Zhang
DOI:10.1002/adsc.201000680
日期:2011.2.11
Asymmetric hydrogenation of α-dehydroamino ketones catalyzed by a rhodium-chiral phosphorus ligand complex (up to 99% ee, 1000 TON), represents an efficient approach to chiral α-amino ketones. The reduction of α-amino ketones catalyzed by palladium on carbon (Pd/C) leads to amphetamine precursors with quantitative yield and no significant enantioselectivity loss.
铑-手性磷配体络合物(高达99%ee,1000 TON)催化的α-脱氢氨基酮的不对称氢化代表了一种有效的手性α-氨基酮的方法。钯/碳(Pd / C)催化的α-氨基酮的还原导致苯丙胺前体具有定量收率,并且没有明显的对映选择性损失。