Nickel-Catalyzed Amination of (Hetero)aryl Halides Facilitated by a Catalytic Pyridinium Additive

An efficient and operationally simple Ni-catalyzed amination protocol has been developed. This methodology features a simple Ni(II)salt, an organic base and catalytic amounts of both a pyridinium additive and Zn metal. A diverse number of (hetero)aryl halides were coupled successfully with primary and secondary alkyl amines, and anilines in good to excellent yields. Similarly, benzophenone imine gave the correspondingN-arylation product in an excellent yield.