Mass Spectra and Fragmentation of Some 2-Substituted 9-(o-Chlorobenzyl)-8-Azahypoxantines
β Scribed by K. V. Kuleshov; A. V. Adamov; A. I. Belokon'; O. G. Rodin; V. P. Perevalov; A. R. Elman
- Book ID
- 111607361
- Publisher
- SP MAIK Nauka/Interperiodica
- Year
- 2004
- Tongue
- English
- Weight
- 45 KB
- Volume
- 30
- Category
- Article
- ISSN
- 1068-1620
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Following the research work on mass spectra of thiophenic compounds,'-' we report here the electron impact mass spectra at 70eV of some 2-and 4-substituted thiophene-3-carboxylic acids (1-23) with the aim of comparing the fragmentations observed with those of the corresponding 3-substituted thiophen
## Abstract Electron impact mass spectra of eight of the title compounds are discussed. The important fragment ions are shown by high resolution and deuterium labelling to contain the benzofuran nucleus and to involve extensive rearrangement processes. Fragmentation pathways have been confirmed by