Fig. 3.

Substrate scope of sulfonimides. Reaction conditions: carbon rod anode, platinum plate cathode, constant current = 10 mA, 1aa (0.40 mmol), 2 (0.60 mmol), ⁿBu₄NOAc (0.40 mmol), solvent ((DCM/CH₃CN/HFIP = 10 mL/2 mL/0.5 mL), undivided cell, N₂, 4 h. Isolated yields. ^b Reaction conditions: carbon cloth anode, platinum plate cathode, constant current = 3 mA, 1az (0.40 mmol), 2 (0.60 mmol), ⁿBu₄NBF₄ (0.40 mmol), NaOAc (0.8 mmol), solvent ((DCM/CH₃CN/HFIP = 10 mL/2 mL/1 mL), undivided cell, N₂, 8h.