Chemistry of Heterocyclic Compounds

, Volume 42, Issue 4, pp 451–457 | Cite as

Mass-spectral behavior and thermal stability of hetaryl analogs of unsymmetrical benzoins

  • S. P. Ivonin
  • A. V. Mazepa
  • A. V. Lapandin


The main path in the mass-spectral dissociation of the hetaryl analogs of unsymmetrical benzoins is β-fragmentation with cleavage of the central C-C bond. Here, the strongest peak in the mass spectra of α-benzoins is the peak of the hydroxymethylhetaryl cation, and in β-benzoins it is the peak of the hetaroyl cation. The thermal α → β isomerization of the hetaryl analogs of benzoin was studied. In the case of indole and pyrrole derivatives the formation of polyheterocyclic systems is observed.


benzoins polyheterocycles isomerization mass spectrometry 


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Copyright information

© Springer Science+Business Media, Inc. 2006

Authors and Affiliations

  • S. P. Ivonin
    • 1
  • A. V. Mazepa
    • 2
  • A. V. Lapandin
    • 1
  1. 1.Dnepropetrovsk National UniversityDnepropetrovskUkraine
  2. 2.A. V. Bogatsky Physico-Chemical InstituteNational Academy of Sciences of UkraineOdessa

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