Highly Chemo- and Enantioselective Cross-Benzoin Reaction of Aliphatic Aldehydes and α-Ketoesters
作者:Karen Thai、Steven M. Langdon、François Bilodeau、Michel Gravel
DOI:10.1021/ol400769t
日期:2013.5.3
highly chemo- and enantioselective cross-benzoin reaction between aliphatic aldehydes and α-ketoesters. This methodology represents the first high yielding and highly enantioselective intermolecular cross-benzoin reaction using an organocatalyst (up to 94% ee). Further diastereoselective reduction of the products gives access to densely oxygenated compounds with high chemo- and diastereoselectivity.
缺电子,缬氨酸衍生的三唑鎓盐可催化脂肪族醛与α-酮酸酯之间的高度化学和对映选择性的交叉安息香反应。该方法学是首次使用有机催化剂(最高94%ee)的高产率和高对映选择性的分子间交叉安息香反应。产物的进一步非对映选择性还原使得可以获得具有高化学和非对映选择性的致密氧化化合物。