Fig. 3

para-Selective C–H amination of different anilines. Reaction conditions: graphite rod anode (ϕ 6 mm), platinum plate cathode (15 mm × 15 mm × 0.3 mm), constant current = 7 mA (J_anode ≈ 7.8 mA cm⁻²), ⁿBu₄NBF₄ (0.15 mmol), 1 (0.30 mmol), 2 (0.20 mmol), MeCN/MeOH (7.0 mL/3.0 mL), room temperature, N₂, 2.0 h (2.6 F). Isolated yields were shown. ^aConstant current = 10 mA (J_anode ≈ 11 mA cm⁻²)