Abstract
The reaction of vinyl derivatives of benzimidazole-2-thione with bromine was investigated. It is shown that the principal reaction is the addition of the halogen to the double bond of the vinyl group. Depending on the structure of the starting vinyl derivative, elimination of hydrogen bromide or halogenation at the heteroring nitrogen atom, which leads to the formation of hydrohalides, is subsequently possible.
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Translated, from Khimiya Geterotsiklicheskikh Soedinenii, No. 8, pp. 1092–1094, August, 1982.
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Skvortsova, G.G., Abramova, N.D. & Trzhtsinskaya, B.V. Bromination of vinyl derivatives of benzimidazole-2-thione. Chem Heterocycl Compd 18, 835–837 (1982). https://doi.org/10.1007/BF00506591
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DOI: https://doi.org/10.1007/BF00506591