Asymmetric aldol-Tishchenko reaction catalyzed by Yb-complexes with basic amino acid-derived ligands
作者:Maciej Stodulski、Agnieszka Mamińska、Jacek Mlynarski
DOI:10.1016/j.tetasy.2011.02.026
日期:2011.2
Simple amino acid-derived esters have been identified as promising chiral sources for the ytterbium-catalyzed aldol-Tishchenko reaction of aromatic aldehydes with aliphatic ketones. The 1,3-anti-diols with three stereogenic centers were isolated in excellent yields, complete anti-diastereocontrol and enantioselectivities of up to 50% ee.
简单的氨基酸衍生的酯已被认为是promising催化芳香族醛与脂肪族酮的羟醛-季琴科反应的手性来源。具有优异的产率,完全的抗-非甾体控制和对映体选择性高达50%ee的具有三个立体生成中心的1,3-抗二醇类化合物被分离出来。