engleski

Kinetics of the Oxidation of L-ascorbate with Substituted Nitrosobenzenes

L-Ascorbate reduces substituted nitrosobenzenes in aqueous solution, in a process that includes a cyclic transition state composed of ascorbate and nitrosobenzene and in which concerted electron and proton transfer leads to the products. The results suggest that the mechanism by which ascorbate interacts with the alpha-tocopheroxyl radical in the exceptionally important a-tocopherol/ascorbate redox cycle also includes the corresponding cyclic transition state.

free redicals; vitamin C; nitrosobenzene

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