Structure and Asymmetry in the Isomeric Conversion of β- to α-Endosulfan

Walter F. Schmidt,* Cathleen J. Hapeman, James C. Fettinger, Clifford P. Rice, and Susanna Bilboulian
Environmental Chemistry Laboratory, Natural Resources Institute, Agricultural Research Service, U.S. Department of Agriculture, Beltsville, Maryland 20705, and Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742
J. Agric. Food Chem., 1997, 45 (4), pp 1023–1026
DOI: 10.1021/jf970020t
Publication Date (Web): April 16, 1997
Copyright © 1997 American Chemical Society

Abstract

Keywords: α- and β-endosulfan; conformation; X-ray crystallography; intramolecular conversion; NMR spectroscopy

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This article has been cited by 6 ACS Journal articles (5 most recent appear below).

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    Monitoring and Modeling Endosulfan in Chinese Surface Soil

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      Endosulfan is a currently used organochlorine pesticide in China, with annual usage of 2300 t between 1994 and 2004. Concentrations of endosulfan (including α- and β-isomers and their metabolite endosulfan sulfate) were reported for surface soil collected ...

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      Organochlorine pesticides (OCPs) were quantified by GC-ECD in tomato (Lycopersicon esculentum) during a vegetation period. Plants were harvested at 15, 60, and 151 days after seed germination. Leaves, stem, roots, and fruit (peel and flesh) were analyzed ...

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    Surface-Catalyzed Transformations of Aqueous Endosulfan

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      We report the effect of suspended solids on the oxidation and hydrolysis of the insecticide endosulfan (α and β isomers) and its degradation products:  endosulfan diol, endosulfan sulfate, endosulfan ether, and endosulfan lactone in 0.001 M NaHCO3 buffer (...

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      The Susquehanna River watershed has a large drainage area (71200 km2) containing heavy agricultural land usage. The river provides approximately half the total freshwater input to the Chesapeake Bay. Water samples were collected at Conowingo Dam near the ...

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    Thermodynamic, Spectroscopic, and Computational Evidence for the Irreversible Conversion of β- to α-Endosulfan

    Walter F. Schmidt, Susanna Bilboulian, Clifford P. Rice, James C. Fettinger, Laura L. McConnell, and Cathleen J. Hapeman
    Journal of Agricultural and Food Chemistry2001 49 (11), 5372-5376
    • Thermodynamic, Spectroscopic, and Computational Evidence for the Irreversible Conversion of β- to α-Endosulfan

      Walter F. Schmidt, Susanna Bilboulian, Clifford P. Rice, James C. Fettinger, Laura L. McConnell, and Cathleen J. Hapeman
      Journal of Agricultural and Food Chemistry2001 49 (11), 5372-5376

      Previous studies have provided unequivocal evidence for the symmetry of β-endosulfan and the corresponding asymmetry of α-endosulfan; the conversion of β-endosulfan to α-endosulfan was identified. In this study, evidence from differential scanning ...

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History

  • Published In Issue April 16, 1997
  • Received for review January 7, 1997. Accepted January 29, 1997. Mention of specific products or suppliers is for identification and does not imply endorsement by the U.S. Depart ment of Agriculture to the exclusion of other suitable products or suppliers.

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