Oxidative cross-coupling of allyl(trimethyl)silanes with aryl boronic acids by palladium catalysis
作者:Zhibing Zhou、Zhen-Lin Hou、Fan Yang、Bo Yao
DOI:10.1016/j.tet.2018.10.055
日期:2018.12
allylsilanes with aryl boronic acids has been developed by palladium catalysis. The reaction between β-substituted allyl(trimethyl)silanes and a wide range of aryl boronic acids afforded allylarenes in moderate to good yields and excellent selectivity. On the basis of experimental results and literature reports, it was suggested that the reaction might start from transmetalation of aryl boronic acid with AgOAc
烯丙基硅烷与芳基硼酸的第一次氧化交叉偶联已通过钯催化发展。β-取代的烯丙基(三甲基)硅烷与各种芳基硼酸之间的反应以中等至良好的产率和优异的选择性提供了烯丙基芳烃。根据实验结果和文献报道,有人认为该反应可能始于芳基硼酸与AgOAc的重金属化反应,然后与Pd(II)的重金属化反应,从而制得乙酸芳基钯配合物作为关键中间体。将该中间体与烯丙基硅烷进行亲电加成/去甲硅烷基化或金属转移,然后还原消除,得到最终产物。