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Heterocyclic studies—XXV: Mass spectra of some 4-trifluoromethylpteridine derivatives

✍ Scribed by Jim Clark; F. S. Yates

Publisher
John Wiley and Sons
Year
1971
Tongue
English
Weight
454 KB
Volume
5
Category
Article
ISSN
1076-5174

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✦ Synopsis

Mass spectra of 4-trifluoromethylpteridine and nine of its derivatives are recorded. Electron impact induced fragmentations of 4-trifluoromethylpteridine and its 2-chloro-, 7-methyl-and 6,7-dimethyl-derivatives resemble those of pteridine and simple methylpteridines except that loss of a trifluoromethyl radical usually intervenes at some stage. Fragmentation of 4-trifluoromethylpteridine derivatives with an amino, substituted-amino, alkoxy or alkylthio group in the 2-position fragment by a variety of mechanisms. Accurate mass measurements and deuterium labelling ' were used to help elucidate some fragmentation pathways.

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