## Abstract The mass spectra of 2‐nitrosophenols are independent of the insertion temperature, suggesting that the compounds either do not exhibit tautomerism in the vapour phase or that the enthalpy of isomerization is low. However, their fragmentation patterns suggest tautomerism in the molecular
Mass spectrometric studies—II: Mass spectrometric studies of maleimides and benzaldazine adducts. Identification of solid mixtues
✍ Scribed by S. W. Tam
- Publisher
- John Wiley and Sons
- Year
- 1973
- Tongue
- English
- Weight
- 306 KB
- Volume
- 7
- Category
- Article
- ISSN
- 1076-5174
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✦ Synopsis
Abstract
It has been found by mass spectrometric studies that the so‐called ‘1:1‐adduct’ formed by N‐( __n__butyl)maleimide and benzaldazine, is in fact a solid mixture of one part bis‐imide L and one part benzaldazine. Bis‐imide L is one of the three stereoisomeric products obtained by the addition of two mole of N‐( n‐butyl)malemide and one mole of benzaldazine. The three stereoisomeric bis‐imides gave identical mass spectra. Mass spectra of bis‐imide M and bis‐imide M‐ __d__2 are discussed, and confirm the proposed structures of perhydroprazolo‐pyrazole derivatives for these 1:2‐adducts.
📜 SIMILAR VOLUMES
We studied the mass spectrometric behaviour of peracetylated and underivatized anomeric hexopyranosyl azides and 5-thioglucopyranosyl azides by means of different mass spectrometric techniques. The unstable molecular ions fragment predominantly by losing either N3 radical or N2 molecule. Loss of N2