Iron‐Promoted Electrophilic Annulation of Aryl Enynes with Disulfides or Diselenides Leading to Polysubstituted Naphthalenes

An iron‐promoted electrophilic annulation of aryl enynes with disulfides or diselenides has been developed. In the presence of iron(III) chloride (FeCl3) and iodine (I2,), a variety of trifluoromethyl‐containing aryl enynes underwent electrophilic annulation with various disulfides or diselenides successfully to afford the corresponding polysubstituted naphthalenes in moderate to excellent yields. magnified image