Palladium(II) complexes catalyse the amide-directed displacement of an aryl-Si group and its replacement by an electrophilic alkene at ambient temperature, analogous to an oxidative Heck reaction. A palladacyclic intermediate is involved, and the reaction enables substitution to occur specifically in the electron-poor ring of benzanilides. The procedure described provides a formal link between directed
钯 (II) 配合物催化芳基-Si 基团的酰胺定向置换,并在环境温度下将其替换为亲电子烯烃,类似于氧化 Heck 反应。涉及钯环中间体,该反应使取代能够特异性地发生在苯甲酰苯胺的缺电子环中。所描述的程序提供了定向锂化和 Heck 反应之间的正式联系。