Metal‐free: The first metal‐free aryltrifluoromethylation of activatedalkenes has been developed. With this method, trifluoromethylated isoquinolinediones, spirobicycles, oxindoles, and α‐aryl‐β‐trifluoromethylamides were obtained with high control of the regioselectivity.
A novel copper-catalyzedone-pottrifluoromethylation/arylmigration/desulfonylation and C(sp(2))-N bond formation with conjugated tosyl amides as starting materials is presented here. The reaction affords α-aryl-β-trifluoromethyl amides bearing a quaternary stereocenter or trifluoromethylated oxindoles in a regioselective manner.