Fig. 3 |. Substrate scope for the functionalized carbon-atom insertion reaction.

Isolated yields on a 0.2 mmol scale unless stated otherwise. Reaction conditions: indene (0.2 mmol), 2d (0.24 mmol), Ru(dtbbpy)3(PF6)2 (1 mol%) and Na2CO3 (0.4 mmol) in CH3CN (4 ml, 0.05 M), irradiation with a 30 W blue LED (λmax = 450 nm) under an argon atmosphere at room temperature (r.t.) for 12 h. a2f was used instead of 2d. Isolated after oxidation to alcohol. r.s.m., remaining starting material. bIsolated after oxidation to alcohol.