Electronic structure of 4H‐pyrido[1,2‐a]pyrimidin‐4‐ones

Gábor Horváth, István Hermecz, Ágnes Horváth, Marianna Pongor‐Csákvári, Levente Pusztay, Árpád István Kiss, László Czakó, Osman Hassan Abdirizak

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The characteristic features of ir and uv spectra of 43 4H‐pyrido[1,2‐a]pyrimidin‐4‐one derivatives with electron donor or acceptor groups in position 3, and positions 6, 7, 8, or 9, respectively, have been systematically studied. On the basis of the spectra some conclusions have been drawn for the molecular structure. The negative solvent effect of the lowest‐energy π → π* transition is investigated by the PPP method.

Original languageEnglish
Pages (from-to)481-489
Number of pages9
JournalJournal of Heterocyclic Chemistry
Issue number2
Publication statusPublished - Jan 1 1985


ASJC Scopus subject areas

  • Organic Chemistry

Cite this

Horváth, G., Hermecz, I., Horváth, Á., Pongor‐Csákvári, M., Pusztay, L., Kiss, Á. I., Czakó, L., & Abdirizak, O. H. (1985). Electronic structure of 4H‐pyrido[1,2‐a]pyrimidin‐4‐ones. Journal of Heterocyclic Chemistry, 22(2), 481-489. https://doi.org/10.1002/jhet.5570220255