Letter | Published:

Spontaneous Decomposition of a Sample of Pure Endrin

Nature 212, 505 (1966) | Download Citation

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Abstract

IT is well known that both isodrin and endrin produce compounds containing a rearranged carbon skeleton when treated with acids, heat or ultra-violet light1–3. Both thermal and acid-catalysed decompositions of endrin yield mainly a ketone which has the same elementary formula as endrin but contains an additional five-membered ring and has lost the olefinic double-bond. This communication reports an instance in which a pure, recrystallized sample of endrin stored in the dark for several years under normal ambient temperature conditions underwent this rearrangement.

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References

  1. 1

    Cookson, R. C., and Crundwell, E., Chem. Indust., 703 (1959).

    • 2

      Phillips, D. D., Pollard, G. E., and Soloway, S. B., J. Agric. Food Chem., 10, 217 (1962).

    • 3

      Soloway, S. B., Damiana, A. M., Sims, J. W., Bluestone, H., and Lidov, R. E., J. Amer. Chem. Soc., 82, 5377 (1960).

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    1. Tropical Pesticides Research Unit, Porton Down, Salisbury, Wiltshire

      • F. BARLOW

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    https://doi.org/10.1038/212505a0

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