A cobalt-catalyzed reaction has been developed, which proceeds via hydrogen atom transfer and radical-polar crossover steps, to form a phenonium ion under non-acidic conditions. This cationic intermediate can be regioselectively fluorinated by a tetrafluoroborate anion to give 1,2-aryl migrated products. Evaluation of distinctly substituted phenonium ion intermediates demonstrated the constraints for
已经开发出一种
钴催化反应,该反应通过
氢原子转移和自由基极性交叉步骤进行,在非酸性条件下形成
苯鎓离子。该阳离子
中间体可以被四
氟硼酸根阴离子区域选择性
氟化,得到 1,2-芳基迁移产物。对明显取代的
苯鎓离子
中间体的评估表明了良好反应性和高选择性的限制。