Metal-catalyzed alkylation of 1,1-dihalovinyl moiety commonly suffers from both a lack of stereoselectivity and the overreaction leading to the dialkylation product. The methodology described herein features a new pathway to alkylate stereoselectively β,β-dichlorostyryl substrates to provide the Z-trisubstituted olefin only with fair to good yields. This cross-coupling reaction bears on the smooth
金属催化的1,1-二卤代戊基部分的烷基化通常既缺乏立体选择性,又导致生成二烷基化产物的反应过度。本文所述的方法学的特征在于一种新的途径,其将立体选择性地β,β-二
氯苯乙烯基底物烷基化,以仅以中等至良好的产率提供Z-三取代的烯烃。这种交叉偶联反应依赖于C中心自由基的平滑和光诱导形成,该自由基参与
镍催化的有机
金属循环以形成关键的Csp2–Csp3键。