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Analysis of tetrabenzyl N ‐giucosidic, N ‐mannosidic and N ‐galactosidic Isomers using fast atom bombardment/mass‐analysed ion kinetic energy spectrometry
Author(s) -
Yan Lin,
Peng Jiarou,
Jiao Xianyun,
Cai Mengshen
Publication year - 1992
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.1210270906
Subject(s) - fast atom bombardment , ion , chemistry , kinetic energy , mass spectrometry , mass spectrum , atom (system on chip) , matrix isolation , ring (chemistry) , spectral line , analytical chemistry (journal) , molecule , organic chemistry , chromatography , physics , quantum mechanics , astronomy , computer science , embedded system
A series of new synthetic tetrabenzyl N ‐glucosidic, N ‐mannosidic and N ‐galactosidic isomers were investigated by fast atom bombardment (FAB)/mass‐analysed ion kinetic energy (MIKE) spectrometry. The [M + H] + ions were obtained with high abundance in the FAB spectra when using 3‐nitrobenzyl alcohol as the matrix. The FAB/MIKE spectra provide characteristic daughter ions fragmented from selected molecular parent ions, allowing these isomers to be differentiated. In addition, an interesting rearrangement was found from the MIKE spectra, indicating that the benzyl (Bzl) group on the sugar ring is rearranged on to the N atom of the base (R) group to form [R + Bzl + H] + and [R+ 2Bzl] + ions.