Subtle Electronic Effects in Metal-Free Rearrangement of Allenic Alcohols
作者:Venkata R. Sabbasani、Phani Mamidipalli、Huijie Lu、Yuanzhi Xia、Daesung Lee
DOI:10.1021/ol400331r
日期:2013.4.5
and stereoselective rearrangement of allenic alcohols to (E,E)-1,3-dien-2-yl triflates and chlorides was developed under metal-free conditions. Subtle electronic effects of the alkyl and aryl substituents on the carbon bearing the hydroxyl group has a profound impact on the reaction rate and efficiency such that vinyl triflates were obtained from electron-deficient substrates and trimethylsilyl triflate