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Studies in organic mass spectrometry. IV. Electron impact induced fragmentation of 2-substituted 3-(5-isoxazolyl)-4(3H)-quinazolinones of pharmaceutical interest

✍ Scribed by Leopoldo Ceraulo̊; Salvatore Plescia; Giuseppe Daidone; Maria Luisa Bajardi


Book ID
112127575
Publisher
Journal of Heterocyclic Chemistry
Year
1984
Tongue
English
Weight
245 KB
Volume
21
Category
Article
ISSN
0022-152X

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✍ E. Cant; M. Vandewalle 📂 Article 📅 1972 🏛 John Wiley and Sons 🌐 English ⚖ 487 KB

The mass spectra of some 1,3-~yclopentanediones and 1,2,4-~ycIopentanetriones, related to compounds encountered in the chemistry of hops bitter constituents have been determined. Methyl substituted compounds mostly show ring degradation, while for longer alkyl groups and acyl groups, fragmentations