A chemoselective electrooxidative heterocoupling of two different enamines is reported for the synthesis of unsymmetrically substituted NH-pyrroles. A “magic effect” of the additive trifluoroethanol is utilized to achieve the desired chemoselectivity by tuning the oxidation potentials and controlling the activation energy of the rate-determining step.
据报道,两种不同烯胺的
化学选择性电氧化杂偶联可用于合成不对称取代的 NH-
吡咯。添加剂
三氟乙醇的“神奇效应”用于通过调节氧化电位和控制速率决定步骤的活化能来实现所需的
化学选择性。