Chemistry of Heterocyclic Compounds

, Volume 36, Issue 5, pp 532–536 | Cite as

Alkaline scission of a urea unit in 5-alkyl-2-amino-N-ureido-3,4-dicyanopyrroles

  • A. N. Lyshchikov
  • O. V. Pul'kherovskaya
  • A. N. Vasil'ev
  • Ya. S. Kayukov
  • O. E. Nasakin
Article

Abstract

The scission of the urea group in 5-alkyl-2-amino-3,4-dicyano-N-ureidopyrroles on boiling in KOH solution in DMSO was observed to give 5-alkyl-1,2-diamino-3,4-dicyanopyrroles which were used for the synthesis of pyrrolo[1,2-b][1,2,4]triazepines by reaction with acetylacetone.

Keywords

diaminopyrroles 1,2,4-triazepines ureidopyrroles 

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References

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Copyright information

© Kluwer Academic/Plenum Publishers 2000

Authors and Affiliations

  • A. N. Lyshchikov
  • O. V. Pul'kherovskaya
  • A. N. Vasil'ev
  • Ya. S. Kayukov
  • O. E. Nasakin

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