Ligand‐Free Silver(I)‐Catalyzed Intramolecular Friedel–Crafts Alkylation of Arenes with Allylic Alcohols

Abstract magnified image The silver‐catalyzed direct activation of allylic alcohols as electrophilic partners for intramolecular Friedel–Crafts alkylation of arenes is described. Use of silver triflate (AgOTf; 10 mol%) enabled functionalized 1‐vinyl‐1,2,3,4‐tetrahydronaphthalenes and a 4‐vinyl‐1,2,3,4‐tetrahydroisoquinoline to be isolated in good yields with high levels of regiochemistry, under a ligand‐free regime.