Summary
The kinetics of oxidation of d-glucose, d-galactose, d-fructose, d-ribose, d-arabinose, d-xylose and 2-deoxyd-glucose by diperiodatoargentate(III) (DPA) have been investigated in alkaline medium. The order of the reaction with respect to [DPA] is unity while the order with respect to [sugar] is < 1 over the concentration range studied. The rate increases with an increase in [OH −] and there is a marginal decrease in the rate with an increase in [IO sup−inf4 ]. No significant dependence on ionic strength was found, but the rate increases with a decreasing dielectric constant. Formic acid and the corresponding aldonic acids were detected as the products of oxidation. The participation of the open chain form of the sugar and a mechanism involving the initial formation of a complex between the enediol of the sugar and AgIII are proposed.
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Krishna, K.V., Rao, P.J.P. Kinetics and mechanism of oxidation of some reducing sugars by diperiodatoargentate(III) in alkaline medium. Transition Met Chem 20, 344–346 (1995). https://doi.org/10.1007/BF00139125
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DOI: https://doi.org/10.1007/BF00139125