Carbon‐13 n.m.r. study of naturally occurring xanthones
- 1 November 1977
- journal article
- research article
- Published by Wiley in Magnetic Resonance in Chemistry
- Vol. 9 (11), 631-636
- https://doi.org/10.1002/mrc.1270091106
Abstract
The 13C n.m.r. spectra of 36 naturally occurring xanthones are reported and all chemical shifts assigned. The shifts in substituted xanthones can be predicted from substituent effects evaluated for simple derivatives. The agreement between calculated and observed shifts decreases as the extent of substitution in the xanthone increases.Keywords
This publication has 15 references indexed in Scilit:
- Biosynthesis of the fungal xanthone ravenelinJournal of the Chemical Society, Perkin Transactions 1, 1976
- Carbon-13 NMR spectroscopy of heterocyclic compounds—IVTetrahedron, 1975
- Xanthone Studies. V. Hydroxyl Proton Chemical Shifts of Hydroxyxanthones with Allylic Substituents.Acta Chemica Scandinavica, 1973
- Xanthone Studies. IV. Hydroxyl Proton Chemical Shifts in the Structural Investigation of Xanthones.Acta Chemica Scandinavica, 1972
- Chemical investigation of ceylonese plants. Part I. Extractives of Calophyllum calaba L. and Calophyllum bracteatum Thw. (Guttiferae)Journal of the Chemical Society, Perkin Transactions 1, 1972
- Furano compounds. XII. Synthesis of furano[2,3-b]xanthonesThe Journal of Organic Chemistry, 1971
- Xanthones in higher plants: Biogenetic proposals and a chemotaxonomic surveyPhytochemistry, 1969
- Biogenetic proposals regarding aucuparins and xanthonesPhytochemistry, 1968
- Naturally Occurring Xanthones.Chemical Reviews, 1961
- Über vollständige Methylierung mit DimethylsulfatEuropean Journal of Inorganic Chemistry, 1910