Summary
1. The seed oil of the Central Asian common wormwood has yielded 1.48% of cis-12,13-epoxyoctadec-cis-9-enoic acid, 5.94% of cis-9,10-epoxyoctadec-cis-12-enoic acid, and traces of 9,10-epoxyoctadecanoic acid, and their structures have been confirmed.
2. It is proposed to used the neutralization number of fatty acids to determine the amounts of epoxy acids in their combinations with α-hydroxydienic acids.
3. The possibility has been shown of determining the amount of ratio of the isomeric epoxy acids using oxidative degradation of the total oxy acids.
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Additional information
Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 6, pp. 705–710, November–December, 1976.
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Ul'chenko, N.T., Gigienova, E.I. & Umarov, A.U. Epoxy acids of the seed oil ofArtemisia absinthium . Chem Nat Compd 12, 635–639 (1976). https://doi.org/10.1007/BF00564948
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DOI: https://doi.org/10.1007/BF00564948