C5 position was described. The reaction utilized easily available sodiumhalides as the halogen sources and proceeded smoothly under transition metal-free conditions. Various 8-aminoquinolines with a number of functional groups were compatible in this reaction to afford the corresponding halogenated products in moderate to good yields. Moreover, the reactionconditions also tolerated the substrates
protocol for PhI(OAc)2 oxidation halogenation of quinoline at the C5 position was developed, affording the desired remote C–H activation products in moderate to excellent yields. This reaction proceeds with copperhalides as the halogenating reagent to afford the halogenated quinolines and features excellent substrate tolerance, providing a facile pathway for the C5 halogenation of quinoline.
Simple and halide-atom economical HX reagents (X = Cl, Br and I) were applied to the remote CH bond halogenation reaction of 8-aminoquinoline amides. This strategy features a broad substrate scope and good functional group tolerance. A series of C5-halogenated 8-aminoquinolines were obtained in moderate to good yields under mild conditions.