Iodine‐Mediated Regioselective Radical Cyclization of o‐Vinylaryl Isocyanides with Disulfides/Diselenides Leading to 2‐Chalcogenated Quinolines

Abstract An iodine‐mediated radical cyclization of o ‐vinylaryl isocyanides with disulfides or diselenides was developed. The atom‐economic reaction provides a method for regioselective construction of the 2‐chalcogenated quinolines in 42–93% yields by incorporation of both chalcogen atoms of disulfides or diselenides into quinolines.