Studies in organic mass spectrometry. Part 27. Electron ionisation induced isomerisation of 3-aryl-4(3H)-quinazolinones

Leopoldo Ceraulo, Vita Di Stefano, Mirella Ferrugia, Krisztina Ludnyi, Stefania Segreto, K. Vékey

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The comparison between 70 eV EI (electron ionisation) mass spectra, MIKE (mass analysed ion kinetic energy) and CID (collision induced dissociation) MIKE spectra, KER (kinetic energy release) and KERD (kinetic energy release distribution) data for 2-methyl-3-aryl-4(3H)-quinazolinones 1-4, with those of the corresponding 2-methyl-4-aryloxyquinazolines 1′-4′, indicates that aryloxy radical as well as hydrogen or methyl radical losses involve the formation of common intermediates. This suggests the occurrence of migrations of aryl groups from the N-3 atom to carboxylic oxygen in the molecular ions of 1-4.

Original languageEnglish
Pages (from-to)433-439
Number of pages7
JournalRapid Communications in Mass Spectrometry
Volume15
Issue number6
DOIs
Publication statusPublished - 2001

Fingerprint

Isomerization
Kinetic energy
Ionization
Mass spectrometry
Electrons
Ions
Hydrogen
Oxygen
Atoms
4-hydroxyquinazoline

ASJC Scopus subject areas

  • Analytical Chemistry
  • Spectroscopy

Cite this

Studies in organic mass spectrometry. Part 27. Electron ionisation induced isomerisation of 3-aryl-4(3H)-quinazolinones. / Ceraulo, Leopoldo; Stefano, Vita Di; Ferrugia, Mirella; Ludnyi, Krisztina; Segreto, Stefania; Vékey, K.

In: Rapid Communications in Mass Spectrometry, Vol. 15, No. 6, 2001, p. 433-439.

Research output: Contribution to journalArticle

Ceraulo, Leopoldo ; Stefano, Vita Di ; Ferrugia, Mirella ; Ludnyi, Krisztina ; Segreto, Stefania ; Vékey, K. / Studies in organic mass spectrometry. Part 27. Electron ionisation induced isomerisation of 3-aryl-4(3H)-quinazolinones. In: Rapid Communications in Mass Spectrometry. 2001 ; Vol. 15, No. 6. pp. 433-439.
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