Copper(II)-Catalyzed Oxidative Coupling of Anilines, Methyl Arenes, and TMSN<sub>3</sub> via C(sp<sup>3</sup>/sp<sup>2</sup>)–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.