Fig. 2: Scope of gem-difluorides from sulfones generated via additions using alkenes as radical acceptors.

Reaction conditions: 2 (0.5 mmol, 1.0 equiv), 1 (2.0 equiv), 2-NpSH (20 mol%), HCO₂K (3.0 equiv), DMSO (4 mL), white LED, room temperature, 18 h. All yields are isolated yields. ^a1 (0.5 mmol, 1.0 equiv), 2 (2.0 equiv).