Versatile palladium-catalyzed C–H olefination of (hetero)arenes at room temperature†
Abstract
The room-temperature oxidative C–H/C–H cross-couplings between (hetero)arenes and alkenes, coumarins or quinones have been reported by using a highly electrophilic palladium species [Pd(TFA)2], generated in situ from Pd(OAc)2 and TFA, as the catalyst and cheap (NH4)2S2O8 as the oxidant under air.