Gas‐Phase ring‐chain tautomerism in 1,3‐oxazines. Does it exist?

Pirjo Vainiotalo, F. Fülöp, Kalevi Pihlaja

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Gas‐phase ring‐chain tautomeric equilibria with eight 2‐phenyl‐substituted perhydro‐1,3‐oxazines and six 2‐aryl‐substituted l,2‐dihydro‐4H‐3,1‐benzoxazines were studied by recording their mass spectra Finder different conditions. Their fragmentation behaviour was also studied using metastable ion analysis and exact mass measurement. For the monocyclic compounds the existence of tautomerism was apparent and it resembled that found in non‐polar solvents. In contrast, benzoxazines gave little evidence for the presence of the open‐chain forms.

Original languageEnglish
Pages (from-to)438-442
Number of pages5
JournalOrganic Mass Spectrometry
Volume26
Issue number5
DOIs
Publication statusPublished - 1991

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Benzoxazines
mass spectra
fragmentation
recording
Ions
ions

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Medicine
  • Instrumentation

Cite this

Gas‐Phase ring‐chain tautomerism in 1,3‐oxazines. Does it exist? / Vainiotalo, Pirjo; Fülöp, F.; Pihlaja, Kalevi.

In: Organic Mass Spectrometry, Vol. 26, No. 5, 1991, p. 438-442.

Research output: Contribution to journalArticle

Vainiotalo, Pirjo ; Fülöp, F. ; Pihlaja, Kalevi. / Gas‐Phase ring‐chain tautomerism in 1,3‐oxazines. Does it exist?. In: Organic Mass Spectrometry. 1991 ; Vol. 26, No. 5. pp. 438-442.
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