Premium
Electron impact studies. CIII —Negative ion mass spectra of naturally occurring compounds: Nitrobenzoyl derivatives of amino esters
Author(s) -
Stapleton B. Jane,
Bowie John H.
Publication year - 1976
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.1210110416
Subject(s) - mass spectrum , ion , chemistry , electron ionization , spectral line , mass spectrometry , medicinal chemistry , organic chemistry , physics , chromatography , astronomy , ionization
Abstract The negative ion mass spectra of p ‐nitrobenzoyl derivatives of amino esters show pronounced molecular anions and characteristic fragmentation patterns. Fragment anions observed in the spectra of o ‐nitrobenzoyl analogues arise by various interactions between the nitro and amino ester groups. No fragmentation of the amino ester residue is observed for the m ‐nitrobenzoyl derivatives, but the +E spectra of these systems can be used to provide definitive structural information.