Alteration ofO,O-dimethylS-[α-(carboethoxy)benzyl] phosphorodithioate (phenthoate) in citrus, water, and upon exposure to air and sunlight
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The fate of32P- and14C-labeledO,O-dimethylS-[α-(carboethoxy)benzyl] phosphorodithioate (phenthoate) was determined in citrus, water, and upon exposure to air and sunlight. The products recovered from citrus and glass plates exposed to sunlight were unchanged phenthoate, phenthoate oxon, demethyl phenthoate, mandelic acid,bis- [α-(carboethoxy)benzyl] disulfide,O,O-dimethyl phosphorothioic and phosphorodithioic acid. Similar products generally were found in citrus leaf and fruit extracts. Phenthoate was fairly stable in phosphate buffered water with a half-life of approximately 12 days at pH 8.0. The major hydrolysis products were phenthoate acid, demethyl phenthoate and demethyl phenthoate oxon.
KeywordsPhosphate Hydrolysis Benzyl Glass Plate Hydrolysis Product
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- Bender, M. E.: The effect of Malathion on fishes. Ph.D. Dissertation. Dept. of Environ. Sci., Rutgers University, N. J. (1968).Google Scholar
- Foss, O.: Derivatives of electropositive sulfur. Chem. Abs.41, 1599g (1974).Google Scholar
- Hirose, M., I. Miyata, T. Saito, and M. Hayoshi: Residue, degradation and metabolism of14C labeled Elsan® O,O dimethylS-[α-(carboethoxy)benzyl] phosphorodithioate in cabbage,Hime-apples and strawberries. Botyu Kagaku36, 43 (1971).Google Scholar
- Plapp, F. W., and J. E. Casida: Hydrolysis of the alkyl-phosphate bond in certain dialkyl aryl phosphorothioate insecticides by rats, cockroaches and alkali. J. Econ. Entomol.51, 800 (1958).Google Scholar
- Santi, R., M. Rodice, and P. Martinotti: Degradazione, metabolismo e residui di Cidial 32P nelle mele, nelle pere, nelle olive e nell 'olio de oliva.Instituto Ric. Agr. Soc. Montecatini-Edison IX, 87. Contributi 1966–67.Google Scholar