Skip to main content
Log in

Conjugation of polyunsaturated fats with dimsylsodium

  • Technical
  • Published:
Journal of the American Oil Chemists Society

Abstract

The conjugation of polyunsaturated fatty esters, including soybean oil, trilinolein, soybean methyl esters, and methyl linolenate and linoleate, with the sodium salt of dimethyl sulfoxide (dimsylsodium) as catalyst has been investigated. Methyl esters are ca. 95% conjugated within 2 hr. Glycerides react more slowly but are similarly conjugated within 24 hr. The glyceride linkages are not destroyed as they would be with aqueous or alcoholic alkali. Highly conjugated oils can thus be prepared.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. DeJarlais, W.J., and L.E. Gast, JAOCS 48:21 (1971).

    Article  CAS  Google Scholar 

  2. DeJarlais, W.J., and L.E. Gast, Ibid. 48:157 (1971).

    Article  CAS  Google Scholar 

  3. Ugelstad, J., B. Jenssen and P.C. Mörk, Acta Chem. Scand. 16:323 (1962).

    Article  CAS  Google Scholar 

  4. Ugelstad, J., O.A. Rokstad and J. Skarstein, Ibid. 17:208 (1963).

    CAS  Google Scholar 

  5. Asinger, F., B. Fell and P. Krings, Chem. Ber. 99(5):1737 (1966).

    CAS  Google Scholar 

  6. Corey, E.J., and M. Chaykovsky, J. Amer. Chem. Soc. 84:866 (1962).

    Article  CAS  Google Scholar 

  7. Molau, G., and J.E. Mason, Dow Chemical, U.S. Patent 3,415,795 (1968).

    Google Scholar 

  8. Fritz, J.S., and G.H. Schenk, Anal. Chem. 31:1808 (1959).

    Article  CAS  Google Scholar 

  9. Kleiman, R., G.F. Spencer, F.R. Earle and I.A. Wolff, Lipids 4:135 (1969).

    Article  CAS  Google Scholar 

  10. Price, C.C., and T. Yukuta, J. Org. Chem. 34:2503 (1969).

    Article  PubMed  CAS  Google Scholar 

  11. Corey, E.J., and M. Chaykovsky, J. Amer. Chem. Soc. 86:1639 (1964).

    Article  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Additional information

ARS, USDA.

About this article

Cite this article

Dejarlais, W.J., Gast, L.E. & Cowan, J.C. Conjugation of polyunsaturated fats with dimsylsodium. J Am Oil Chem Soc 50, 108–109 (1973). https://doi.org/10.1007/BF02633559

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02633559

Keywords

Navigation