An efficient regioselective synthesis of 4-chalcogen-substituted arylamines
by FeF3-catalyzed sulfenylation and selenation of arylamines
has been developed. In the presence of FeF3 and I2,
a variety of arylamines underwent the reaction with disulfides or diselenides
to afford the corresponding 4-sulfenyl- or 4-selenenylarylamines
in moderate to good yields.
iron - iodine - sulfenylation - selenation - arylamine - 4-chalcogen-substituted arylamine