C-13-NMR ASSIGNMENTS FOR METHYLS AND QUATERNARY CARBONS OF THE LIMONOID OBACUNONE

Citation
Jk. Rugutt et al., C-13-NMR ASSIGNMENTS FOR METHYLS AND QUATERNARY CARBONS OF THE LIMONOID OBACUNONE, Spectroscopy letters, 29(4), 1996, pp. 711-726
Citations number
13
Categorie Soggetti
Spectroscopy
Journal title
ISSN journal
00387010
Volume
29
Issue
4
Year of publication
1996
Pages
711 - 726
Database
ISI
SICI code
0038-7010(1996)29:4<711:CAFMAQ>2.0.ZU;2-E
Abstract
The high field H-1 and C-13 resonances of obacunone were established b y a series of 1D and 2D NMR experiments. The C-13-NMR signals of the f ive tertiary methyl groups and all quatenary carbons were unambiguousl y assigned. The results confirm the stereochemical assignments at all stereogenic centres.