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Electron impact mass spectra of novel tetrahydroimidazo [4, 5, l‐ jk ] [1, 4]benzodiazepin‐2(1 H )‐one derivatives
Author(s) -
Caldwell Gary W.,
Kukla Michael J.,
Masucci John A.,
Breslin Henry J.,
Jones William J.,
Gauthier Diane A.,
Fedde Cynthia L.
Publication year - 1991
Publication title -
organic mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 0030-493X
DOI - 10.1002/oms.1210260210
Subject(s) - fragmentation (computing) , metastability , ion , mass spectrum , electron ionization , electron , spectral line , chemistry , high mass , mass , analytical chemistry (journal) , physics , organic chemistry , nuclear physics , biology , astrophysics , astronomy , ionization , ecology
Mass spectral fragmentations of nine benzodiazepin derivatives were examined by exact mass measurement and by metastable ion analysis. Under electron impact conditions, all compounds give rise to a molecular ion and ions of m / z 160, 159, 147, 131, 104, 77, 56, 41, and 39. Key fragmentation pathways are discussed for these ions.