Abstract
The reaction of α, β-unsaturated ketones or Mannich bases of ketones with primary aromatic amines and ketones (monoketones or dimedone) in the presence of polyhalo-alkanes leads to pyridinium, 5,6,7,8-tetrahydroquinolinium, or sym-octahydroacridinium salts. The reaction of benxalcyclohexanone with primary aromatic amines and malonodinitrile makes it possible to obtain 2-amino-3-cyano-5,6,7,8-tetrahydroquinolinium salts.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 8, pp. 1060–1064, August, 1985.
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Kaminskii, V.A., Shevchuk, G.Y. & Tilichenko, M.N. Synthesis of pyridinium salts by the reaction of α, β-unsaturated ketones, primary amines, and compounds with labile hydrogen atoms. Chem Heterocycl Compd 21, 883–887 (1985). https://doi.org/10.1007/BF00519815
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DOI: https://doi.org/10.1007/BF00519815