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Electron impact‐promoted fragmentation of some substituted 4‐quinazolones
Author(s) -
Badr M. Z. A.,
Hammerum Steen,
Duffield A. M.
Publication year - 1995
Publication title -
journal of mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 1076-5174
DOI - 10.1002/jms.1190301210
Subject(s) - chemistry , fragmentation (computing) , mass spectrum , electron ionization , high resolution , ion , polyatomic ion , ring (chemistry) , medicinal chemistry , organic chemistry , remote sensing , computer science , ionization , geology , operating system
Low‐resolution mass spectra, and where appropriate complete high‐resolution mass spectra, were recorded for 29 2,3‐disubstituted 4‐quinazolones. Rationalizations are presented for the principal fragmentation modes of this series of aromatic compounds. Four of the 4‐quinazolones which contain a vinyl‐2‐furanyl group attached to C‐2 of the heterocyclic ring exhibited an unusual loss of C 3 H 2 O from their respective molecular ions.