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Kinetics and mechanism of rhodium(III)-catalysed oxidation of 1,2-glycols by acid bromate

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Summary

RhIII-catalysed oxidation of 1,2-glycols by acid bromate was studied in the presence of Hg(OAc)2 at 40°C. The order is zero with respect to [BrO −3 ] and unity in [RhIII] and in [glycol]. The oxidation rate is unaffected by variation in [H+] and added salts. Stoichiometric studies indicate that one mole of bromate consumes three moles of glycol giving the corresponding carbonyl compounds. A suitable mechanism involving direct reaction between RhIII and glycol to give product,via hydride ion abstraction by RhIII, is proposed.

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Authors and Affiliations

  1. Department of Chemistry, Osmania University, 500007, Hyderabad, India

    Shaik Sondu, Bangalore Sethuram & Tangeda Navaneeth Rao

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  1. Shaik Sondu
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  2. Bangalore Sethuram
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  3. Tangeda Navaneeth Rao
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Sondu, S., Sethuram, B. & Navaneeth Rao, T. Kinetics and mechanism of rhodium(III)-catalysed oxidation of 1,2-glycols by acid bromate. Transition Met Chem 15, 78–80 (1990). https://doi.org/10.1007/BF01032238

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  • DOI: https://doi.org/10.1007/BF01032238

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