Carbon-Carbon Bond Formation Mediated by an Iron(0)-Olefin Pincer Complex

C-H functionalization is a highly appealing strategy for accessing complex molecular structures. Herein, we show that π-tethered pincer ligands can engage in reversible C-H activation when coordinated to iron. These reactions result in C(sp2)-C(sp2) bond formation through oxidative coupling and β-hydride elimination/reductive elimination pathways with alkynes and isocyanides.