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Mass spectra of pyridazines and their N ‐oxides
Author(s) -
Ogura Haruo,
Sugimoto Shingo,
Igeta Hiroshi,
Tsuchiya Takashi
Publication year - 1971
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570080307
Subject(s) - chemistry , pyridazine , fragmentation (computing) , mass spectrum , metastability , ion , spectral line , electron ionization , polyatomic ion , amine gas treating , high resolution , computational chemistry , analytical chemistry (journal) , medicinal chemistry , organic chemistry , physics , remote sensing , astronomy , computer science , ionization , geology , operating system
The mass spectra of pyridazines and their N ‐oxides is reported. Previous electron impact studies on aromatic amine N ‐oxides reported the appearance of M‐16 and/or M‐17 ion peaks as the usual feature of the fragmentations. In our experiments, the representative fragmentation of the pyridazine N ‐oxides involves formation of a M‐30 (M‐NO) ion. The fragmentation patterns substantiated by extensive high resolution studies and the analysis of the appropriate metastable ions.