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Electrochemical Oxidation of Difenoconazole in Solutions: LC/MS Identification of Reaction Products

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Abstract

Electrochemical transformation of difenoconazole (3-chloro-4-((2RS,4RS;2RS,4SR)-4-methyl-2-(1H-1,2,4-triazol-1-ylmethyl)-1,3-dioxolan-2-yl)phenyl 4-chlorophenyl ether) is studied in mixed-aqueous solvents (a mixture of aqueous ammonium formate (pH = 7.4) and acetonitrile (ACN) in a volume ratio of 3 : 1); the difenoconazole solution’s concentration is 100 μg/mL. The products are analyzed by chromatography–mass spectroscopy (HPLC/ESI MS/MS). Many of the products of difenoconazole electrochemical transformations result from oxidation involving the aliphatic part of the molecule.

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ACKNOWLEDGMENTS

We are grateful to the administration of the Federal Medical Biological Agency “Occupational Pathology and Human Ecology” for using their analytical facilities and to Cand. Sci. (Chem.) O.K. Ostroukhova, an analytical chemist at the Federal State Budget Scientific Institute “All-Russian Institute of Plant Protection” for providing us with a sample of difenoconazole.

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  1. Institute of Chemistry, Petersburg State University, St. Petersburg, Russia

    T. I. Pushkareva & I. G. Zenkevich

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  1. T. I. Pushkareva
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  2. I. G. Zenkevich
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Correspondence to T. I. Pushkareva.

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Translated by A. Kukharuk

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Pushkareva, T.I., Zenkevich, I.G. Electrochemical Oxidation of Difenoconazole in Solutions: LC/MS Identification of Reaction Products. Moscow Univ. Chem. Bull. 74, 127–133 (2019). https://doi.org/10.3103/S0027131419030106

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  • DOI: https://doi.org/10.3103/S0027131419030106

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