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Related Experiment Videos

Taraxerol acetate at 100 K.

D R Billodeaux1, G A Benavides, N H Fischer

  • 1Department of Chemistry, Louisiana State University, Baton Rouge 70803-1804, USA.

Acta Crystallographica. Section C, Crystal Structure Communications
|January 21, 2000
PubMed
Summary

A novel triterpene acetate, D-friedoolean-14-en-3 beta-yl acetate, was identified in common ragweed roots. This study details its chemical structure and isolation from Ambrosia artemisiifolia extracts.

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Area of Science:

  • Phytochemistry
  • Natural Product Chemistry
  • Organic Chemistry

Background:

  • Common ragweed (Ambrosia artemisiifolia) is a widespread plant with a history of medicinal use.
  • Triterpenes are a diverse class of natural products with various biological activities.
  • Isolation and characterization of novel compounds contribute to understanding plant chemical diversity.

Purpose of the Study:

  • To isolate and elucidate the structure of a triterpene from Ambrosia artemisiifolia roots.
  • To characterize the chemical properties of the isolated compound.
  • To contribute to the phytochemical knowledge of Ambrosia species.

Main Methods:

  • Extraction of plant material using dichloromethane.
  • Isolation of the target compound using chromatographic techniques.

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  • Structural elucidation using spectroscopic methods (e.g., NMR, Mass Spectrometry) and X-ray crystallography.

    • Main Results:

    • Isolation of D-friedoolean-14-en-3 beta-yl acetate (C32H52O2).
    • Detailed characterization of the pentacyclic triterpene skeleton, including bond distances and stereochemistry.
    • Confirmation of a beta-oriented acetate group at the 3-position.

    Conclusions:

    • D-friedoolean-14-en-3 beta-yl acetate is a newly identified triterpene from Ambrosia artemisiifolia.
    • The study provides comprehensive structural data for this compound.
    • Further research may explore the biological activities and ecological roles of this triterpene.