yzed cross-coupling through oxidative addition of the C(sp3)–F bond in trifluoromethylarenes (ArCF3), which are ideal precursors for this process due to their ready availability and low cost. Here, we report an unprecedented excited-state palladium catalysis strategy for selective defluoroarylation of trifluoromethylarenes with arylboronicacids. This visible-light-induced palladium-catalyzed cross-coupling