Electron-Deficient Phosphines Accelerate the Heck Reaction of Electronrich Olefins in Ionic Liquid
作者:Shifang Liu、Ourida Saidi、Neil Berry、Jiwu Ruan、Alan Pettman、Nick Thomson、Jianliang Xiao
DOI:10.2174/157017809787003052
日期:2009.1.1
Using various substrates and ligands, we show that electron-deficient, bidentate phosphines are the ligands of choice for palladium-catalyzed arylation of electron-rich olefins. This is in contrast to the reaction of electron-deficient olefins, which benefit from electron-rich monodentate phosphines. A tentative explanation is offered based on DFT calculations.
使用各种底物和配体,我们证明了缺电子的双齿膦配体是钯催化富电子烯烃芳基化反应的首选配体。这与电子匮乏的烯烃反应相反,后者得益于电子丰富的单齿膦配体。我们根据DFT计算结果提供了一个初步的解释。