## Abstract The positive‐ion electron impact ionization mass spectra of eight substituted 3‐nitropyrroles were examined. The major fragment ions arise by __ortho__ interactions between the 3‐nitro group and the 2‐methyl or 2‐aryl group.
Studies in organic mass spectrometry. Part 15 [1]. Electron ionization mass spectra of some 5-nitro-3-thiophenecarboxanilides
✍ Scribed by Leopoldo Ceraulo; Paolo De Maria; Antonella Fontana; Sara Frascari; Domenico Spinelli
- Book ID
- 112130495
- Publisher
- Journal of Heterocyclic Chemistry
- Year
- 1992
- Tongue
- English
- Weight
- 326 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0022-152X
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
The main fragmentation routes of eighteen title compounds and of three 5-chloro derivatives have been investigated with the aid of linked scan (B/E = constant) spectrometry, accurate mass measurements and deuterium labelling.
## Abstract Mass spectral fragmentations of two cyclopentane, eight cyclohexane and four norbornane/one 1,3‐amino alcohols were studied under electron ionization (EI) by low‐resolution, high‐resolution, metastable ion analysis and collision‐induced dissociation (CID) techniques. All stereoisomeric