Indirect electro-oxidation of benzene in divided electrolytic cells

The indirect electro-oxidation of benzene was studied in a divided electric cell,with Cu 2+ as electrolytic medium,Pt as anode and graphite as cathode.The results showed that the primary product was phenol when pH was 1.3 with CuSO 4 concentration 100mmol/L and oxygen velocity 5 ml/min,or the primary product was quinol when pH was 3.5 with CuSO 4 concentration 5mmol/L and oxygen velocity 10 ml/min.