Fig. 4 Oxidative D – A reactions of styrene with alkene or arene. Reaction conditions of a 1,1-diphenylethene (0.2 mmol), 2,3-dihydrofuran 8 (1 mmol), Acr + -Mes ClO − (3 mol%), Co(dmgH) 4 2 py 2 PF 6 (8 mol%) in DCE (5 mL), 3W blue LEDs, 24 h. Reaction conditions of b : 1,1-diphenylethene (0.26