enabling the preparation of various bridgehead N‐fused [5,6]‐bicyclic heteroarenes through regioselective electrochemical C−H/N−H annulation without chemical metal oxidants. Novel azaruthenabicyclo[3.2.0]heptadienes were fully characterized and identified as key intermediates. Mechanistic studies are suggestive of an oxidatively induced reductive elimination pathway within a ruthenium(II/III) regime
建立了
咪唑与
炔烃的
钌催化电
化学脱氢环化反应,无需
化学金属氧化剂,即可通过区域选择性电
化学CHH / NH环合制备各种桥头N-稠合[5,6]-双环杂
芳烃。新型azaruthenabicyclocyclo [3.2.0]庚二烯已被充分表征并确定为关键中间体。机理研究表明
钌(II / III)方案内的氧化诱导的还原消除途径。