Xanthylium, Thioxanthylium, and Tropylium Salts in Reactions with Imidazole and Benzimidazole

Abstract

Xanthylium, thioxanthylium, or tropylium salts were reacted with imidazole and benzimidazole. The reactions gave the substitution products of the secondary amino hydrogen atoms in the imidazole and benzimidazole heterorings by xanthyl, thioxanthyl, and tropylium fragments. The structure of the obtained compounds was established by mass spectrometry, 1H NMR spectroscopy, and X-ray diffraction analysis.

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Funding

The work was financially supported by the Russian Foundation for Basic Research (project no. 19-03-00888).

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Correspondence to L. P. Yunnikova.

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Yunnikova, L.P., Likhareva, Y.E., Islyaykin, M.K. et al. Xanthylium, Thioxanthylium, and Tropylium Salts in Reactions with Imidazole and Benzimidazole. Russ J Org Chem 56, 828–832 (2020). https://doi.org/10.1134/S1070428020050152

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Keywords:

  • imidazole
  • benzimidazole
  • xanthylium salts
  • thioxanthylium salts
  • tropilium salts