Electron ionization mass spectrometry of spiroepoxides generated from E‐3‐arylideneflavanones

Miklós Lipták, Z. Dinya, Csaba Nemes, Albert Lévai, T. Patonay, K. Vékey

Research output: Contribution to journalArticle


The electron‐impact induced decomposition of some spiroepoxides prepared from E‐3‐arylideneflavanones has been examined by means of low‐ and high‐resolution mass spectrometry, mass‐analysed ion kinetic energy (MIKE) spectrometry and collision‐induced dissociation (CID) experiments. The compounds studied were found to undergo a rearrangement reaction resulting in a very intense odd‐electron ion. The MIKE and CID‐MIKE spectra of this type of ion generated from the unsubstituted epoxide proved to be identical to those of the molecular ion of trans‐stilbene. The isomerization of epoxides to the corresponding carbonyl compounds prior to fragmentation was not observed.

Original languageEnglish
Pages (from-to)662-664
Number of pages3
JournalRapid Communications in Mass Spectrometry
Issue number7
Publication statusPublished - 1993

ASJC Scopus subject areas

  • Analytical Chemistry
  • Spectroscopy
  • Organic Chemistry

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