Premium
Rearrangement reactions in the positive and negative ion mass spectra of clausmarin A
Author(s) -
Madhusudanan K. P.,
Shoeb Aboo
Publication year - 1985
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.1210200211
Subject(s) - mass spectrum , fragmentation (computing) , ion , chemistry , deuterium , mass , spectral line , labelling , coumarin , analytical chemistry (journal) , mass spectrometry , in situ , chromatography , atomic physics , organic chemistry , physics , biochemistry , astronomy , computer science , operating system
The positive and negative ion mass spectra of clausmarin A, a naturally occurring tetracyclic coumarin, have been studied. The base peaks in the positive and negative ion spectra correspond to the complementary ions at m / z 143 and m / z 255, respectively, formed by a rearrangement reaction. The fragmentation pathways have been elucidated with the help of exact mass measurements and in situ deuterium labelling.