Cathodic Radical Cyclisation of Aryl Halides Using a Strongly‐Reducing Catalytic Mediator in Flow
作者:Ana A. Folgueiras‐Amador、Alexander E. Teuten、Mateo Salam‐Perez、James E. Pearce、Guy Denuault、Derek Pletcher、Philip J. Parsons、David C. Harrowven、Richard C. D. Brown
DOI:10.1002/anie.202203694
日期:2022.8.26
Cathodic radical cyclisations of aryl halides have been achieved in an undivided flow electrolysis cell, using phenanthrene as mediator in loadings down to 0.05 equiv, and without the requirement for a sacrificial anode. It is proposed that mediated homogeneous electron transfer proceeds in a reaction layer detached from the cathode, accounting for the observed selectivity.
芳基卤化物的阴极自由基环化已在不分流电解池中实现,使用菲作为介体,负载量低至 0.05 当量,且无需牺牲阳极。据推测,介导的均匀电子转移在与阴极分离的反应层中进行,从而解释了观察到的选择性。