Syntheses of partially hydrogenated [1,2,4]triazolo[4,5-a] pyrimidine-4-ones through cyclisation of 2-arylidenehydrazino-6-methyl-4-pyrimidones

László Szilágyi, Tünde Z. Illyés, Zoltán Györgydeák, György Szabó, András Karácsony

Research output: Contribution to journalArticle

6 Citations (Scopus)


3-Arylsubstituted derivatives of 2H,3H,4H,7H- and 1H,2H,3H,4H-[1,2,4]triazolo[4,5-a]pyrimidin-4-ones were synthesized from 2-arylidenehydrazino-6-methyl-4-pyrimidones by treatment with acetic anhydride. The structures of the starting compounds and of the isomeric di-N-acetylated reaction products were established by NMR.

Original languageEnglish
Pages (from-to)243-252
Number of pages10
Issue number7
Publication statusPublished - Jan 1 2004


  • 1,2,4]triazolo[4
  • 2-arylidenehydrazino-6-methyl-4-pyrimidones
  • 2D NMR
  • 5-a]pyrimidine-4-ones
  • HMBC
  • Spectroscopy
  • Structure
  • Tautomerism

ASJC Scopus subject areas

  • Organic Chemistry

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