Enantioselective Synthesis of Tertiary α-Hydroxyketones from Unfunctionalized Ketones: Palladium-Catalyzed Asymmetric Allylic Alkylation of Enolates
作者:Barry M. Trost、Raffael Koller、Benjamin Schäffner
DOI:10.1002/anie.201203663
日期:2012.8.13
Aiming high: The title reaction for the synthesis of tertiary α‐hydroxyketones is reported. Protected 1,2‐enediol carbonates, the starting materials, were accessed from simple and readily available enol carbonates. Highly functionalized tertiary α‐hydroxyketones can be obtained in high yield with excellent enantioselectivity using this method (see scheme).
针对高:对于三级α羟基酮的合成标题反应的报道。受保护的1,2-烯二醇碳酸酯(作为起始原料)可从简单易得的烯醇碳酸酯中获得。使用这种方法可以以高收率和极好的对映选择性获得高度官能化的叔α-羟基酮(参见方案)。