C–H imidation: a distinct perspective of C–N bond formation

The direct imidation strategy proficiently constructs C–N bonds and creates the useful amine functional group in the molecular template. This review briefly discusses the synthetic methods developed for the direct imidation of unactivated C(sp²/sp³/sp)–H bonds. Transition-metal catalysts, metal-free processes, and/or photo-induced methods are invariably employed for accomplishing C–H imidation transformations. The contents summarized herein would benefit the research community to use the C–H imidation reactions for broad synthetic applications and to unravel novel C–N bond forming processes.