Chemistry of Heterocyclic Compounds

, Volume 19, Issue 12, pp 1333–1338 | Cite as

Cyclization of N-alkylazinium cations with binucleophiles. 8. Annellation of the imidazole ring with pyrazines and quinoxalines

  • V. N. Charushin
  • V. G. Baklykov
  • O. N. Chupakhin
  • N. N. Vereshchagina
  • L. M. Naumova
  • N. N. Sorokin


Monosubstituted and N,N′-disubstituted thioureas enter into cyclization with pyrazinium and quinoxalinium ion to form imidazo[4,5-b]-annellated pyrazines and quinoxalines.


Organic Chemistry Imidazole Thiourea Pyrazines Imidazole Ring 
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Copyright information

© Plenum Publishing Corporation 1984

Authors and Affiliations

  • V. N. Charushin
    • 1
  • V. G. Baklykov
    • 1
  • O. N. Chupakhin
    • 1
  • N. N. Vereshchagina
    • 1
  • L. M. Naumova
    • 1
  • N. N. Sorokin
    • 1
  1. 1.S. M. Kirov Ural Polytechnic InstituteSverdlovsk

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