Paper Chromatography of Pyrethrins and their Derivatives

@article{Quayle1956PaperCO,
  title={Paper Chromatography of Pyrethrins and their Derivatives},
  author={J. Rodney Quayle},
  journal={Nature},
  year={1956},
  volume={178},
  pages={375-376}
}
VARIOUS methods have been described for the chromatographic separation of pyrethrin-type compounds. Alumina, silica and kieselguhr have been used as adsorbents for separation of ‘pyrethrin I’ from ‘pyrethrin II’1–3. A separation of cinerin I from ‘pyrethrin I’, and ‘cinerin II’ from ‘pyrethrin II’, has almost certainly been achieved by Ward2, using displacement chromatography on alumina. The ‘pyrethrins’ have also been separated by paper chromatography using alumina-impregnated paper1 and… 
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Pyrethrin and Gallotannin in the Flowers of Peony

FROM a light petroleum extract of dried petals of peony (Peonia albiflora Pall.) an oily substance (74.08 per cent C, 9.94 per cent H) was isolated by means of nitromethane extraction. It comprises

Chemistry of the natural pyrethrins.

  • L. CrombieM. Elliott
  • Chemistry, Medicine
    Fortschritte der Chemie organischer Naturstoffe = Progress in the chemistry of organic natural products. Progres dans la chimie des substances organiques naturelles
  • 1961
The flowers of the herbaceous perennial Chrysanthemum cinerariaefolium Vis, a member of the Compositae family, are valued for their insecticidal properties: the history of their employment has been discussed by Gnadinger and to-day the principal world source is Kenya where a rationally administered industry provides standardised products.

Chromatographische Verfahren A. Papierchromatographie

Im Jahre 1944 gelang drei englischen Forschern (R. Consden u. Mitarb.) die Schaffung einer genialen Ultramikromethode, welche wie wenige vorher bestimmt sein sollte, ganz neue Moglichkeiten auf dem

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