Rationally Designed Chiral Synthons Enabling Asymmetric <i>Z</i>- and <i>E</i>-Selective Vinylogous Aldol Reactions of Aldehydes
作者:Akhil Padarti、Hyunsoo Han
DOI:10.1021/acs.orglett.8b00230
日期:2018.3.2
In a conceptually different approach, highly stereoselective 2-oxonia-Cope rearrangement reactions between rationally designed nonracemic vinylogous aldolation synthons and aldehydes are described to provide δ-hydroxy-α,β-unsaturated esters with excellent enantioselectivities and, for the first time, unprecedented Z- and E-selectivities without the regioselectivity issue.
在概念上不同的方法中,描述了合理设计的非外消旋乙烯基醛醇缩合合成子与醛之间的高度立体选择性的2- oxonia- Cope重排反应,可提供具有出色对映选择性的δ-羟基-α,β-不饱和酯,并且是前所未有的Z -和E-选择性没有区域选择性的问题。