Fig. 3: Scope of gem-difluorides from sulfones generated via substitutions 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. aK2CO3 (1.0 equiv) as an additive. bThe reaction was conducted on 0.2 mmol scale.