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EIMS study of new isomeric N ‐substituted hydrazones of 2‐(3‐ and 4‐)‐pyridinecarboxaldehydes
Author(s) -
Wyrzykiewicz E.,
Prukała D.
Publication year - 1999
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570360327
Subject(s) - chemistry , mass spectrum , ion , fragment (logic) , spectral analysis , medicinal chemistry , computational chemistry , spectral line , stereochemistry , organic chemistry , algorithm , spectroscopy , physics , quantum mechanics , astronomy , computer science
EI induced mass spectral fragmentations of twelve new hydrazones of 2‐(3‐ and 4‐)‐pyridinecarboxaldehydes and hydrazides of ( E )‐stilbenyloxyacetic acid as well as N ‐( E )‐stilbenyloxyalkylcarbonyl substituted amino acids were investigated. Fragmentations pathways are proposed on the basis of accurate mass and B/E linked scan spectra measurements. The correlation between the intensities of M +. and the selected fragment ions of these compounds is discussed. The data obtained create the basis for distinguishing isomers.