Aniline nitrene cation

The aniline nitrene cation (couples with a neutral aniline molecule to produce head-to-tail. 

Furthermore, the first direct amination of benzene has been achieved and has generated the aniline derivative in an acceptable yield (Equation (103)). Recently, a cationic copper(i) complex 132-catalyzed nitrene transformation to the C-H bonds of the electron-rich arene was reported by Sadighi and co-workers (Equation (104)).285... 

We conclude this section by stating that both mechanisms, i.e., radical cation-radical cation and nitrene-anilinc coupling reactions, may be operative for the aniline dimerization reaction. As pointed out by Genies et al. [49], the nilrene mechanism may be... 

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