Abstract

Kinetic data for the rate of the osmium tetroxide-catalyzed oxidation of butane-1,4-diol and 2-methylpentane-2,4-diol with hexacyanoferrate (III) are reported. The results thus obtained suggest that the oxidation proceeds via formation of an activated complex between the diol anion and osmium tetroxide, which slowly disproportionates to an intermediate product and the osmium (VI) species. The osmium (VI) species thus produced is oxidized rapidly to osmium (VIII) species with hexacyanoferrate (III) ion. The oxidation products are confirmed, and a possible reaction path for their formation is proposed.

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