Published March 2007
| Version v1
Journal article
Xeractinol: a new flavanonol C-glucoside from Paepalanthus argenteus var. argenteus (Bongard) Hensold (Eriocaulaceae)
- 1. UNESP, Bauru, SP (Brazil). Faculdade de Ciencias
- 2. UNESP, Araraquara, SP (Brazil). Inst. de Quimica
Description
New compound isolated from methanolic extract from the leaves of Paepalanthus argenteus var. argenteus (Bongard) Hensold was characterized as xeractinol, a new dihydroflavonol C-glucoside. The structure was elucidated on the basis of extensive spectroscopic analysis (1D and 2D NMR, MS, HREIMS, IR and UV). Ab initio electronic structure calculations support our proposal to the molecular structure. The dihydroflavonol herein isolated may serve as taxonomic marker of Paepalanthus subgenus Xeractis, because this flavonoid have not been reported in any other taxon of Eriocaulaceae. (author)
Availability note (English)
Also available from http://www.scielo.br/pdf/jbchs/v18n2/a29v18n2.pdfAdditional details
Identifiers
Publishing Information
- Journal Title
- Journal of the Brazilian Chemical Society
- Journal Volume
- 18
- Journal Issue
- 2
- Journal Page Range
- p. 437-439
- ISSN
- 0103-5053
- CODEN
- JOCSET
INIS
- Country of Publication
- Brazil
- Country of Input or Organization
- Brazil
- INIS RN
- 38102584
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- CARBON 13; FLAVONOIDS; HYDROGEN 1; INFRARED SPECTRA; ISOMERS; LEAVES; LIQUID COLUMN CHROMATOGRAPHY; MASS SPECTRA; METHANOL; METHOXY RADICALS; NMR SPECTRA; PYRANS; TAXONOMY; ULTRAVIOLET SPECTRA
- Descriptors DEC
- ALCOHOLS; ALKOXY RADICALS; CARBON ISOTOPES; CHROMATOGRAPHY; EVEN-ODD NUCLEI; HETEROCYCLIC COMPOUNDS; HETEROCYCLIC OXYGEN COMPOUNDS; HYDROGEN ISOTOPES; HYDROXY COMPOUNDS; ISOTOPES; LIGHT NUCLEI; NUCLEI; ODD-EVEN NUCLEI; ORGANIC COMPOUNDS; ORGANIC OXYGEN COMPOUNDS; RADICALS; SEPARATION PROCESSES; SPECTRA; STABLE ISOTOPES
Optional Information
- Notes
- 12 refs., 1 fig., 1 tab.