, Volume 1, Issue 4, pp 268–273 | Cite as

Keto fatty acids formCuspidaria pterocarpa seed oil

  • C. R. SmithJr.


The seed oil ofCuspidaria pterocarpa contains three keto fatty acids with unusually long carbon chains: 15-oxo-cis-18-tetracosenoic (5.4%), 17-oxo-cis-20-hexacosenoic (13.4%), and 19-oxo-cis-22-octacosenoic (3.3%) acids. These acids were isolated by countercurrent distribution of the corresponding methyl esters. Their structures were established by oxidative degradation, by reduction to known compounds, and by nuclear magnetic resonance and infrared spectra.


Nuclear Magnetic Resonance Spectrum Keto Acid Countercurrent Distribution Chromium Trioxide Hydriodic Acid 
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Copyright information

© American Oil Chemists’ Society 1966

Authors and Affiliations

  • C. R. SmithJr.
    • 1
  1. 1.Northern Regional Research LaboratoryPeoria

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