Fig. 5: Scope of aromatic hydrocarbons and silyl enol ether.

Reaction conditions: 5 (0.2 mmol, 1 equiv.), 2,4,6-collidine (0.2 mmol, 1 equiv.), [Ir(dF(CF3)ppy)2(5,5′d(CF3)bpy)](PF6) PC-IV(1 mol%), Co(dmgH)2(py)2PF6 (10 mol%), DCE (1.0 mL, 0.2 M), rt, blue LEDs, 36 h.