The [2,3]Wittig rearrangement of 2-alkenyloxyacetic acids and its applications to the stereocontrolled synthesis of β, γ-unsaturated aldehydes and conjugated dienoic acids
Dianions generated from 2-alkenyloxyacetic acids readily undergo the [2,3]sigmatropic rearrangement uhich can constitute the versatile synthetic sequences for the stereocontrolled synthesis of β,γ-unsaturated aldehydes and conjugated dienoic acids.
[2,3]-Wittig rearrangement of allylic glycolate esters via boron and tin enolates
作者:Taeboem Oh、Zbigniew Wrobel、Steven M. Rubenstein
DOI:10.1016/s0040-4039(00)92271-8
日期:1991.1
Wittig rearrangement of allylic glycolate esters via boron and tin enolates gave diastereoselectivities as high as 99.5 : 0.5. Tin enolates were more stereoselective than boron enolates.