TY  - JOUR
VL  - 28
EP  - 22
Y1  - 1993///
AV  - restricted
N1  - Export Date: 27 January 2024
TI  - Electron impact ionization mass spectra of some substituted dipyrido[1,2-a:4,3-d]pyrimidinones
SP  - 18
SN  - 0030-493X
IS  - 1
JF  - ORGANIC MASS SPECTROMETRY
UR  - https://doi.org/10.1002/oms.1210280105
A1  -  Maki Esa
A1  -  Pihlaja Kalevi
A1  -  Huber Imre
A1  -  Fülöp Ferenc
A1  -  Bernáth Gábor
A1  -  Vainiotalo Pirjo
ID  - publicatio32140
N2  - 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]+ ion and loss of substituents, H2CN., CO and alkyl radicals.
ER  -