The newly synthesized aromatic substrates PFPA, PCPA and DIPA were quantitatively converted to the corresponding EPOs PFPA-O2, PCPA-O2 and DIPA-O2 (Figures S9, S10, S11, S12) using the following parameters: Under the set conditions, it was possible to quantitatively convert 1 μmol/min (corresponding on average to about 0.4 mg/min) of substrate to EPO.