organoborons. This reaction involves base-mediated nucleophilic activation of diboron that enables transmetalation of an aryl(halo)palladium(II) intermediate with a diboron. As an alternative, herein, we have established Lewis acid-mediated conditions for borylating (pseudo)haloarenes that require no external base. The electrophilic activation of the aryl(halo)palladium(II) intermediate via dehalogenation
钯催化芳基卤化物的原
硼化反应,即众所周知的宫浦
硼化反应,是有机
硼的可靠合成方法之一。该反应涉及二
硼的碱介导亲核活化,从而使芳基(卤)
钯(II)中间体与二
硼发生
金属转移。作为替代方案,本文中,我们建立了不需要外部碱的
路易斯酸介导的(假)卤代
芳烃硼基化条件。芳基(卤代)
钯(II)中间体通过
路易斯酸性
锌络合物脱卤而发生亲电活化,促进了
硼基化。