Dechlorination of the Hydroxy Derivatives of Polychlorobiphenyls under Thermal Solvolysis in Coal Tar Pitch
E. I. ANDREIKOV, M. G. PERVOVA, YU. A. DIKOVINKINA, O. V. KRASNIKOVA, T. I. GORBUNOVA, V. I. SALOUTIN
Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, Ekaterinburg, Russia
Keywords: hydroxy derivatives of polychlorinated biphenyls, coal tar pitch, hydrodechlorination
Pages: 635-642
Abstract
Dechlorination of the hydroxy derivatives of polychlorinated biphenyls in coal tar pitch has been carried out. It is shown that the heat treatment of polychlorinated biphenyl congener mixtures and hydroxy derivatives of polychlorobiphenyls in toluene-insoluble substances of coal tar pitch involves hydrodechlorination of chloroarenes and their hydroxy derivatives with hydrogen transfer from coal tar pitch compounds. The major products of these reactions are the products of condensation with coal tar pitch compounds, as well as congeners of polychlorinated biphenyls and hydroxyl derivatives of polychlorobiphenyls a smaller number of chlorine atoms.
DOI: 10.15372/CSD2021343
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