• Pd(II)-catalyzed trifluoromethylation1 • Copper-catalyzed trifluoromethylation of aryl boronic acids using a Collidine as a trifluoromethylating reagent2 • Pd-catalyzed electrophilic ortho-trifluoromethylation of arenes3 Used in the stereoselective preparation of • Trifluoromethyl-substituted alkenes via copper-catalyzed trifluoromethylation of terminal alkenes4 • Trifluoromethyl-bearing quaternary carbon centers by Pd-catalyzed intramolecular decarboxylative allylation of α-trifluoromethyl β-keto esters5