Fig. 3. Reaction kinetics.

Reaction conditions: 1a (3.0 mg, 3.6 μmol), CuBr₂ (4.0 equiv.), o-DCB (3.0 mL). a Concentration of 1a over time at different temperatures. b Concentration of 2a over time at different temperatures. c Plots of ln([1a]₀/[1a]) over time at different temperatures, where [1a]₀ and [1a] are the initial and remaining concentrations of 1a, respectively. d Arrhenius plot (black) and Eyring plot (blue) for this one-step oxidation reaction.