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Mass spectral fragmentation patterns of 1,5‐benzodiazepines. I. ortho effects of R 2 ‐substituent on 2‐( ortho ‐R 2 ‐aniline)‐4‐( para ‐R 1 ‐phenyl)‐3 H ‐1,5‐benzodiazepines
Author(s) -
Maza M. E.,
Galindez M.,
Martinez R.,
Cortés E.
Publication year - 1982
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.5570190119
Subject(s) - chemistry , fragmentation (computing) , aniline , substituent , mass spectrum , metastability , ion , electron ionization , medicinal chemistry , spectral line , organic chemistry , physics , astronomy , computer science , ionization , operating system
The 70 eV electron impact mass spectra of twenty‐five 1,5‐benzodiazepines are discussed in detail with the aid of metastable ions and by comparison with the fragmentation patterns of known compounds. The fragmentation is markedly influenced by ortho ‐substituents on the aniline group.