Mass spectra of pyridazines and their N-oxides
β Scribed by Haruo Ogura; Shingo Sugimoto; Hiroshi Igeta; Takashi Tsuchiya
- Book ID
- 112122421
- Publisher
- Journal of Heterocyclic Chemistry
- Year
- 1971
- Tongue
- English
- Weight
- 235 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0022-152X
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π SIMILAR VOLUMES
The negative-ion mass spectra of some pyridines, pyrazines and their N-oxides are reported. All of the compounds examined fragment by generation of CN-ions. The alkylated derivatives readily form [M -11 anions. Most of the N-oxides yield 0and OH-ions. Polar substituents control the fragmentation pro
Mass spectra of picolinic, nicotinic and isonicotinic acids and of their respective N-oxides are presented. Picolinic acid and its N-oxide demonstrate the facile loss of carbon dioxide and low-intensity molecular ions. Fragmentation is relatively simple. Nicotinic and isonicotinic acids show very si