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Synthesis and mass spectral fragmentation patterns of some new heterocyclic bis‐carboxamides
Author(s) -
KarminskiZamola Grace,
Crnjak Andrina,
Bajić Miroslav
Publication year - 1995
Publication title -
rapid communications in mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.528
H-Index - 136
eISSN - 1097-0231
pISSN - 0951-4198
DOI - 10.1002/rcm.1290091208
Subject(s) - chemistry , fragmentation (computing) , mass spectrum , ion , electron ionization , cleavage (geology) , bond cleavage , nitrogen , spectral line , medicinal chemistry , stereochemistry , crystallography , organic chemistry , catalysis , ionization , computer science , operating system , physics , geotechnical engineering , astronomy , fracture (geology) , engineering
The electron impact mass spectra of some newly synthesized heteropolycyclic bis‐carboxamides are discussed. The dominant peaks in all these spectra are formed by the cleavage of the CN bond on one side of the anilino group with the formation of a fragment ion C 9 H 4 OSCI + m/z 195, as the base peak. Cleavage of the CN bond with charge retention on nitrogen leads to characteristic ions in some cases.