Negative ion electrospray mass spectrometry of neoflavonoids
Resource type
Journal article
Creator (person)
Hulme, Alison N
McNab, Hamish
Peggie, David A
Quye, Anita
Abstract
The electrospray ionisation mass spectra of the neoflavanoids brazilin and hematoxylin are reported in both their reduced (1 and 2, respectively) and their oxidised forms (3 and 4, respectively). In the reduced forms, breakdown pathways under collision induced decomposition (CID) conditions produce fragments characteristic of rings A and C; in their oxidised forms, the fragments are characteristic of rings B and D. The structural assignments of the fragments are substantiated by recording the spectra after deuterium exchange at the hydroxyl groups.
Journal title
Phytochemistry
Volume
66
Issue
23
ISSN
1387-3806
Keywords