Cross-coupling catalysts typically react and unite functionally distinct partners via sequential inner-sphere elementary steps: coordination, migratory insertion, reductive elimination, etc. Here, we report a single catalyst that cross-couples styrenes and benzyl bromides via iterative outer-sphere steps: metal–ligand-carbon interactions. Each partner forms a stabilized radical intermediate, yet heterocoupled
                                    交叉偶联催化剂通常通过连续的内球基本步骤反应并结合功能不同的伙伴:配位、迁移插入、还原消除等。在这里,我们报告了一种通过迭代外球步骤交叉偶联
苯乙烯和苄基
溴的单一催化剂:
金属-
配体-碳相互作用。每个伙伴形成稳定的自由基中间体,但杂偶联产物占主导地位。该系统是氧化还原中性的,因此避免了外源氧化剂,从而形成简单且可扩展的条件。烯烃加氢苄基化的多种变化成为可能,包括获得特权的杂二苄基(1,2-二芳基
乙烷)基序和具有挑战性的季碳变体。