Gosteli−Claisen Rearrangement of Propargyl Vinyl Ethers: Cascading Molecular Rearrangements
作者:Annika Gille、Julia Rehbein、Martin Hiersemann
DOI:10.1021/ol200558j
日期:2011.4.15
The ambivalent reactivity of 2-alkoxycarbonyl-substituted propargyl vinylethers has been explored. Depending on the conditions, the catalyzed and uncatalyzed Gosteli−Claisen rearrangement triggers downstream transformations that cascade from initially formed γ-allenyl α-keto esters to highly substituted furanes and cyclopentenes. In support of a mechanistic hypothesis, the results of a DFT study using