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Mass Spectral Fragmentation Patterns of 11‐( o ‐ and p ‐R‐Anilino)‐5 H ‐dibenzo[ b,e ][1,4]diazepines. IV
Author(s) -
Cortés E.,
Martínez R.,
Zarza A.
Publication year - 1983
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.5570200638
Subject(s) - fragmentation (computing) , chemistry , ion , mass spectrum , electron ionization , polyatomic ion , molecule , stereochemistry , spectral line , organic chemistry , physics , ionization , operating system , astronomy , computer science
The mass spectral fragmentation patterns of eleven 11‐( o ‐ and p ‐R‐anilino)‐5 H ‐dibenzo[b,e][1,4]diazepines obtained by electron impact have been studied. All the spectra analyzed contain molecular ions, which are base peak for para isomers and the principal fragmentation routes takes place either from the molecular ion, or from (M + ‐ 1) ion. There are, however, some deviations from the general fragmentation pattern in the case of 1,4‐dibenzodiazepines with o ‐amino and p ‐methoxy substituents caused by direct interaction of these groups with the dibenzodiazepine ring.