Nickel(II)-Magnesium-Catalyzed Cross-Coupling of 1,1-Dibromo-1-alkenes with Diphenylphosphine Oxide: One-Pot Synthesis of (<i>E</i>)-1-Alkenylphosphine Oxides or Bisphosphine Oxides
作者:Liu Liu、Yulei Wang、Zhiping Zeng、Pengxiang Xu、Yuxing Gao、Yingwu Yin、Yufen Zhao
DOI:10.1002/adsc.201200853
日期:2013.3.11
A novel nickel(II)‐magnesium‐mediated cross‐coupling of diphenylphosphine oxide with a variety of 1,1‐dibromo‐1‐alkenes has been developed, which provides a powerful and general methodology for the stereoselective synthesis of various (E)‐1‐alkenylphosphine oxides or bisphosphine oxides, with operational simplicity of the procedure, good to high yields and broad substrate applicability. Mechanistic
已开发出新颖的镍(II)-镁介导的二苯基膦氧化物与各种1,1-二溴-1-烯的交叉偶联反应,为各种(E)-的立体选择性合成提供了强大而通用的方法1-烯基氧化膦或双氧化膦,操作简便,具有良好的高收率和广泛的底材适用性。机理研究表明,该反应可能涉及Hirao还原,交叉偶联和Michael加成。