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Mass spectral fragmentation pattern of 3‐(2′‐hydroxyethyl)quinolin‐2(1 H )‐one and its derivatives
Author(s) -
Rajendran S. P.,
Shanmugam P.
Publication year - 1992
Publication title -
organic mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 0030-493X
DOI - 10.1002/oms.1210270213
Subject(s) - fragmentation (computing) , chemistry , ion , electron ionization , medicinal chemistry , mass spectrum , ionization , ethanol , photochemistry , stereochemistry , organic chemistry , computer science , operating system
Fragmentation patterns resulting from electron impact ionization of 3‐(2′‐hydroxyethyl)quinolin‐2(1 H )‐one, three of its monosubstituted derivatives and four of its disubstituted derivatives were studied. The molecular ion of quinolinone‐2‐etbanol undergoes initial fragmentation with the loss of OH · , H 2 O, CO, · CHO, CH 2 O, CH 2 OH · , CH 2 CHOH and HCNO species. The [M – CHO] + ion is tentatively suggested to have been formed by the expulsion of H · from the [M – CO] +· ion and the [M ‐ CHO] + peak may be considered as diagnostic of a 2‐quinolone‐3‐ethanol.