## New Mass Spectra Electron Impact Mass Spectrometry of N-alkyl and N-aryl-2,s bs(p-R2-phenyl)pyrrolest Pyrrol derivatives have been widely used as starting materials for the synthesis of various biologically interesting heterocycles.' Some of them possess high biological activity as analgesic an
Electron impact mass spectrometry of N-phosphorylated dimethylsulphoximides and related P-N systems
✍ Scribed by T. A. Modro; J. Wieczorkowski
- Publisher
- John Wiley and Sons
- Year
- 1989
- Tongue
- English
- Weight
- 157 KB
- Volume
- 24
- Category
- Article
- ISSN
- 1076-5174
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## Abstract The electron impact mass spectra of nine solanidane __N__‐oxides show, in addition to the known typical fragmentation pattern of the solanidane moiety, the fragment ions [M – C~5~H~9~]^+^ and [C~6~H~12~NO]^+^, due to thermal Cope __syn__‐eliminations caused by the __N__‐oxide function a
The electron impact induced fragmentations of some unsubstituted and chlorine-substituted naphthalimides and bisnaphthalimides are discussed in detail with the aid of B/E and B'/E linked-scans for metastable ion analysis and collisional activation experiments. In the case of bisnaphthalimides the mo