Electron Impact Promoted Fragmentation of Some 4-Quinolone Alkaloids and Related Compounds.
- 1 January 1977
- journal article
- research article
- Published by Danish Chemical Society in Acta Chemica Scandinavica
- Vol. 31b (1) , 31-39
- https://doi.org/10.3891/acta.chem.scand.31b-0031
Abstract
The complete high resolution mass spectra and low resolution mass spectra of 16 alkaloids and related compounds containing the 4-quinolone ring system fused to either a dihydropyran or a dihydrofuran ring system were recorded and rationalizations of their decomposition modes subsequent to electron impact were suggested. Mass spectrometry provides a powerful tool for the recognition of these 4-quinolone bases, but differentiation between isomeric compounds having fused dihydropyran or dihydrofuran ring systems is more difficult; however, quantitative and in some cases also qualitative differences distinguish their respective mass spectra.Keywords
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