Electrochemical\nSelenized Reaction of <i>N</i>‑Arylbicyclo[1.1.0]butane-1-carboxamides:\nAccess to 3‑(Arylselanyl)spiro[cyclobutane-1,3′-indolin]-2′-one\nDerivatives

A novel selenized reaction of <i>N</i>-arylbicyclo\n[1.1.0]butane-1-carboxamides\nwith diselenide for the synthesis of polycyclic indoline derivatives\nis developed under electrochemical conditions. The synthesis is achieved\nby the bicyclo[1.1.0]butane strain-release reaction and intramolecular\ncyclization process. In addition, this approach features a wide range\nof substrates, good group tolerance, shorter reaction time, and mild\nconditions.