Kinetic features of the oxidation of diols by periodate in a polymer matrix

The authors studied reactions of oxidation of some aliphatic, alicyclic, and aromatic diols with strongly basic anion-exchangers in the periodate form in a matrix of styrene-divinyl-benzene copolymers. They investigated some kinetic features of oxidation of 1-phenyl-1,2-ethanediol and hydroquinone in ethanol medium with a macroporous anion-exchanger. They found that the reaction of oxidation of 1-phenyl-1,2-ethanediol and hydroquinone with a macroporous anion-exchanger in the periodate form in ethanol medium is satisfactorily described by a first-order kinetic equation with respect to the substrate, and diffusion phenomena do not have a determining effect on the reaction rate in these systems. The rate constant of oxidation of 1-phenyl-1,2-ethanediol with the macroporous anion-exchanger in the periodate form increased, and the activation energy decreased by 11.3 kJ/mole in comparison to oxidation with the monomeric analog of benzyltrimethylammonium periodate. Oxidation of substrates with the anion-exchanger in the periodate form takes place with an adequate rate and a high yield, and it is thus a promising method in organic and bioorganic synthesis.