Fig. 2: Optimization of the reaction conditionsa.

aReaction conditions: electrode surface (1.5 × 1.5 cm2, J = 7.1 mA/cm2), 16 mA, undivided cell, 1 (0.5 mmol), PhCF3 (4.8 mL), 2 h, 2.4 F mol−1 (based on 1). bGC Yield using biphenyl as internal standard. c 1 (0.25 mmol), 1 h. dWithout PhCF3, Bu4NBF4 (0.25 mmol) was added as supporting electrolyte (CC Carbon cloth).