Synthesis of β-Amino-α-hydroxy Esters and β-Amino-α-azido Ester by Sharpless Asymmetric Aminohydroxylation, Byproducts Analysis
作者:Zuosheng Liu、Nianchun Ma、Yanxing Jia、Michèle Bois-Choussy、Adriano Malabarba、Jieping Zhu
DOI:10.1021/jo047772o
日期:2005.4.1
Synthesis of enantiomerically pure β-amino-α-hydroxy esters (1, 2) and β-amino-α-azido ester (3) using Sharpless AA as a key step is described. A hitherto unreported side reaction, the oxidation of the β-hydroxy-α-amino ester (5) into the α,α-di-tert-butyloxycarbamoyl-β-ketoester (8) under AA conditions, is documented.
对映体纯的合成β氨基α羟基酯(1,2)和β氨基α叠氮基酯(3使用夏普勒斯AA作为关键步骤)进行说明。一个迄今未报告的副反应时,β羟基α氨基酯(氧化5)插入α,α-二-叔butyloxycarbamoyl-β酮酯(8 AA条件下),进行了说明。