European Journal of Mass Spectrometry - Abstract of Letter: Electron impact mass spectrometry study of a series of substituted 5- aminoalkylmethyl-cytosines and their 1-N-(o-, m- and p-)bromobenzyl-substituted derivatives

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European Journal of Mass Spectrometry
Volume 13 Issue 6, Pages 427–432 (2007)
doi: 10.1255/ejms.901

Letter: Electron impact mass spectrometry study of a series of substituted 5- aminoalkylmethyl-cytosines and their 1-N-(o-, m- and p-)bromobenzyl-substituted derivatives

Dorota Prukała
Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznań, Poland. E-mail: dprukala@amu.edu.pl

ABSTRACT:

The electron-impact mass spectra of 5- aminoalkylmethyl-substituted cytosine and of their 1-N-o-(m- or p-)bromobenzyl-substituted derivatives are discussed. The influence of 5-aminoalkyl and 1-N-bromobenzyl substituents on the mode of mass fragmentation occurring upon electron impact ionization was demonstrated. The fragmentation pathways of all compounds and the characteristic ions in these spectra originating from the McLafferty rearrangement, RDA reactions and simple cleavages are presented.

Keywords: EI/MS, fragmentation pathways, 5-aminoalkylmethyl-substituted cytosine, 1-N-bromobenzyl-substituted cytosine

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