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Electron ionization mass spectra of some norbornane/ene-fused 2-N-phenyliminoperhydro-1,3-oxazines

✍ Scribed by Tuula Partanen; Pirjo Vainiotalo; Géza Stájer; Kalevi Pihlaja

Book ID: 112130969
Publisher: Journal of Heterocyclic Chemistry
Year: 1994
Tongue: English
Weight: 275 KB
Volume: 31
Category: Article
ISSN: 0022-152X
DOI: 10.1002/jhet.5570310434

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## Abstract The electron impact ionization mass spectra of dipyrido [1,2‐__a__:4,3‐__d__]pyrimidinones are strongly influenced by the degree of aromaticity of the fused rings. The molecular ions of the compounds are fairly stable. The main routes of fragmentation involve formation of the [M – H]^+^