4503-34-8Relevant academic research and scientific papers
POSITIVE AND NEGATIVE ION MASS SPECTRA OF N-SUBSTITUTED α-PYRROLIDONE AND γ-AMINOBUTYRIC ACIDS
Ermakov, A. I.,Pleshkova, A. P.,Sorokin, A. A.,Skachilova, S. Ya.,Pleshakov, M. G.,Zuev, A. P.
, p. 1819 - 1825 (2007/10/02)
The positive and negative ion mass spectra of N-substituted α-pyrrolidone and γ-aminobutyric acid were studied.In the case of the N-benzoyl-substituted compounds the stability of the α-pyrrolidone ring and the exocyclic amide bond to electron impact depends on the position and the type of substituents in the benzoyl group.During the dissociative resonance capture of electrons by the molecules of N-substituted α-pyrrolidones negative fragment ions are formed in the high energy regions (E = 5-8 eV) by cleavage of the amide bonds in the molecular ions.During dissociation of the N-acyl derivatives of the γ-amino acid under electron impact rearrangement processes occur with the formation of stable ions from the amino acid fragment.The peak with maximum intensity in the negative-ion spectrum of γ-aminobutyric acid corresponds to the - anion.
