A) Kinetic time-course for product (3) formation in the OBC with catalyst 1 from HPLC. Conditions: [2] = 94 mM, [4-biphenyl phenyl ether] = 23 mM, [1] = 2 mM, atmospheric O2, MeCN, 40 °C. B) Kinetic time-course for the OBC with catalyst 4. (●) actual O2 uptake; () µmols [2] consumed divided by 4; () µmols [3] formed divided by 2. Conditions: [2] = 151 mM, [4] = 10 mM, pO2 = 840 Torr, [4-Biphenyl phenyl ether] = 42 mM, 6 mL MeCN, 40 °C. Concentrations of 2 and 3 determined by GC.