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Kinetics and mechanism of ruthenium tetroxide catalysed oxidation of cyclic alcohols by bromate in a base

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Kinetic investigations on the RuO4-catalysed oxidation of cyclopentanol (Cypol) and cyclohexanol (Cyhol) in alkaline KBrO3 in the presence of Hg(OAc)2 which acts as a bromide ion scavenger have been made in the 30°–45°C range. The reaction exhibits zero order kinetics in OH− and is first order with respect to BrO −3 , substrate and RuO4. The influence of Hg(OAc)2 and ionic strength is insignificant. A transient complex, formed between HRuO −5 (the active species of RuO4) and the cyclic alcohol, reacts with BrO −3 in a slow, rate determining step to give the products; the catalyst is regenerated.

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Authors and Affiliations

  1. Department of Chemistry, University of Allahabad, 211002, Allahabad, India

    Bharat Singh & Sheila Srivastava

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  1. Bharat Singh
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  2. Sheila Srivastava
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Singh, B., Srivastava, S. Kinetics and mechanism of ruthenium tetroxide catalysed oxidation of cyclic alcohols by bromate in a base. Transition Met Chem 16, 466–468 (1991). https://doi.org/10.1007/BF01129466

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