Copper(II)-Catalyzed Oxidative Coupling of Anilines, Methyl Arenes, and TMSN3 via C(sp3/sp2)-H Functionalization and C-N Bond Formation.

Copper(II)-catalyzed cross-coupling of anilines, methyl arenes, and TMSN3 in the presence of tert-butylhydroperoxide at moderate temperature produced 2-aryl benzimidazoles via a tandem C(sp3/sp2)-H functionalization and C-N bond formations. The selectivity and multiple C-H functionalization of the simple substrates are significant practical features.