Synthesis of Vinyl Sulfides and Vinylamines Through Catalytic Intramolecular Hydroarylation in the Presence of FeCl3 and AgOTf.

The title synthesis proceeds in a selective manner and is further extended to the preparation of dihydropyrano[2,3-g]chromene derivatives through a selective two-fold Fe-catalyzed 6-endo-hydroarylation.