The kinetics of the oxidation of ascorbic acid (AsH2) by trivalent copper complex (1) were studied under anaerobic conditions over the pH range 2–7. A bell-shaped pH–rate profile was obtained indicating a maximum at pH 4.5. The active species near the maximum are the hydrated CuIII complex and the ascorbate ion.
Y. Yano, S. Takano, Y. Kato and W. Tagaki, J. Chem. Soc., Perkin Trans. 2, 1979, 1227 DOI: 10.1039/P29790001227
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