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Mass spectra of some quinoline hydroxamic acids and related compounds
Author(s) -
Coutts R. T.,
Hindmarsh K. W.
Publication year - 1969
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.1210020703
Subject(s) - quinoline , mass spectrum , chemistry , deuterium , ion , radical , molecule , polyatomic ion , spectral line , molecular mass , mass spectrometry , oxide , nitric acid , medicinal chemistry , inorganic chemistry , organic chemistry , chromatography , physics , quantum mechanics , astronomy , enzyme
The mass spectra of some 3‐ and 4‐substituted quinoline hydroxamic acids and related compounds have been interpreted, and proposed fragmentations substantiated by means of deuterium‐labeling and accurate mass determinations. All compounds examined gave abundant molecular ions; most showed strong [M 16] + ions and weak [M 17] + ions. The expulsion of CO and HCN molecules and H and HCO radicals were common subsequent decompositions. The spectrum of 4‐hydroxy‐2‐methylquinazoline‐3‐oxide (VII) was unique and showed that nitric oxide was expelled from the molecular ion.