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Science 2 January 1970:
Vol. 167. no. 3914, pp. 67 - 69
DOI: 10.1126/science.167.3914.67
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Articles

Photooxidation of DDT and DDE

Jack R. Plimmer 1, Ute I. Klingebiel 1, and Burton E. Hummer 1

1 Crops Research Division, Agricultural Research Service, Beltsville, Maryland 20705

The pesticide DDT [1,1,1-trichloro-2,2-bis(p-chlorophenyl) ethane] and its metabolite DDE [ 1,1-dichloro-2,2-bis(p-chlorophenyl) ethylene] can be photoOxidized in methanol. Photolytic generation of free radicals that may abstract hydrogen from solvent, react with oxygen, or abstract hydrogen from unreacted substrate occurs. Further decomposition of short-lived intermediates yields many compounds. Oxidation products include benzoic acids, aromatic ketones, and chlorinated phenols. The DDE also undergoes photocyclization to give dichlorofluorene derivatives.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Induced Photolysis of DDT.
L. L. Miller and R. S. Narang (1970)
Science 169, 368-370
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