Transition Metal Chemistry

, Volume 15, Issue 1, pp 31–33 | Cite as

Kinetics and mechanism of oxidation of allyl, crotyl and cinnamyl alcohol by chromium(V)

  • Gantla Sreelatha
  • Mulakaluri Prasada Rao
  • Bangalore Sethuram
  • Tangeda Navaneeth Rao
Full Papers

Summary

The kinetics of oxidation of unsaturated alcoholsviz. allyl, crotyl and cinnamyl alcohol by sodium bis[2-ethyl-2-hydroxy butanoato (2−)] oxochromate(V) Crv, has been investigated in 25% (v/v) aq. HOAc:HClO4. The order in [oxidant] and [substrate] was 1.0 and 0.7 respectively. The oxidation rate increased with increase in [2-ethyl-2-hydroxybutyric acid] (EHBA) and decreased with increase in the percentage of HOAc. The rate decreases slightly with increase in [H_]. The unsaturated alcohols exhibited higher reactivity compared to their saturated analogues. A mechanism involving the formation of a complex between Crv and alcohol which in turn disproportionates into products in a slow step is advanced to explain the kinetic results.

Keywords

Oxidation Sodium Alcohol Chromium Inorganic Chemistry 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. (1).
    M. Krumpolc and J. Rocek,J. Am. Chem. Soc.,101, 3206 (1979).Google Scholar
  2. (2).
    S. Edwin Gould,Acc. Chem. Res.,19(3), 66 (1986).Google Scholar
  3. (3).
    G. Sreelatha, M. Prasada Rao, B. Sethuram and T. Navaneeth Rao,Indian J. Chem.,27A, 1031 (1988).Google Scholar
  4. (4).
    H. Land and W. A. Waters,J. Chem. Soc., 2129 (1958).Google Scholar
  5. (5).
    B. Sethuram,Curr. Sci. (India),35, 254 (1966).Google Scholar
  6. (6).
    K. Ganapathy and B. Vijayan,J. Indian Chem. Soc.,55, 957 (1978).Google Scholar
  7. (7).
    J. R. Jones and W. A. Waters,J. Chem. Soc., 2068 (1962).Google Scholar
  8. (8).
    M. Krumpolc and J. Rocek,Inorg. Chem.,24, 617 (1985).Google Scholar
  9. (9).
    R. K. Dwivedi, M. Verma, P. Kumar and K. Behari,Tetrahedron,39, 815 (1983).Google Scholar

Copyright information

© Chapman and Hall Ltd. 1990

Authors and Affiliations

  • Gantla Sreelatha
    • 1
  • Mulakaluri Prasada Rao
    • 1
  • Bangalore Sethuram
    • 1
  • Tangeda Navaneeth Rao
    • 1
  1. 1.Department of ChemistryOsmania UniversityHyderabadIndia

Personalised recommendations