A simple aromatic nucleophilic monosubstitution reaction for the synthesis of N-tetrafluoroarylated heterocycliccompounds via selective C4–F bond cleavage of pentafluorobenzene with N–H containing heterocycles is demonstrated. This method is highly tolerant of a wide range of substrates to give the corresponding products in moderate to good yields. Additionally, this strategy is applied to synthesize
A novel dehydrogenativecoupling reaction of N-fluorocarboxamides with polyfluoroarenes forming C(sp2)–C(sp3) bonds enabled by copper catalysis has been accomplished. N-Fluorocarboxamides are postulated to undergo copper-mediated dehydrogenative cross-coupling reaction with electron-deficient polyfluoroarenes via a radicalpathway. Benzylic C–H bonds and aliphatic C–H bonds in N-fluorocarboxamides