Published 2009 | Version v1
Journal article Metadata-only

Spectroscopy study on structural elucidation of flavonoids from Solanum jabrense Agra and Nee and S. paludosum Moric

Creators

  • 1. Universidade Federal Rural de Pernambuco (UFRPE), Recife, PE (Brazil). Dept. de Quimica
  • 2. Universidade Federal Rural do Rio de Janeiro (UFRRJ), Seropedica, RJ (Brazil). Inst. de Ciencias Exatas. Dept. de Quimica
  • 3. Universidade Estadual do Norte Fluminense (UENF), Campos dos Goytacazes, RJ (Brazil). Setor de Quimica de Produtos Naturais

Description

The NMR (RMN1H, 13C, COSY, HMQC, HMBC, NOE-DIFF, NOESY) and mass spectra data analysis of sixteen flavonoids, including nine natural, 7-O-methylkanferol (rhamnocitrin), 3,7-di-O-methylkanferol (kumatakenin), 3-O-methylquercetin, 3,7,3',4'-tetra-O-methylquercetin (retusin), 3,7,8,4'-tetra-O-methylgossipetin, 3,7,8,3',4'-penta-O-methylgossipetin, 7-O-methylapigenin (genkwanin), 3,7,8-tri-O-methylherbacetin, 7,4'- di-O-methylquercetin (ombuine), isolated from Solanum paludosum and S. jabrense, and seven prepared methyl and acetyl derivatives, are discussed according the substitution on the rings A, B and C. (author)

Availability note (English)

Available from http://www.scielo.br/pdf/qn/v32n5/v32n5a08.pdf

Additional details

Additional titles

Original title (Portuguese)
Estudo espectroscopico em elucidacao estrutural de flavonoides de Solanum jabrense Agra and Nee e S. paludosum Moric

Identifiers

URL
http://www.scielo.br/pdf/qn/v32n5/v32n5a08.pdf;

Publishing Information

Journal Title
Quimica Nova On-Line
Journal Volume
32
Journal Issue
5
Journal Page Range
p. 1119-1128
ISSN
1678-7064

INIS

Country of Publication
Brazil
Country of Input or Organization
Brazil
INIS RN
40086775
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
ACETONE; ACETYL RADICALS; ACETYLATION; CARBON 13; DIAZO COMPOUNDS; HYDROGEN 1; LIQUID COLUMN CHROMATOGRAPHY; MASS SPECTRA; METHYL RADICALS; NMR SPECTRA; QUERCETIN; SILICA GEL
Descriptors DEC
ACYL RADICALS; ACYLATION; ADSORBENTS; ALKYL RADICALS; AROMATICS; CARBON ISOTOPES; CHEMICAL REACTIONS; CHROMATOGRAPHY; EVEN-ODD NUCLEI; FLAVONES; FLAVONOIDS; HETEROCYCLIC COMPOUNDS; HETEROCYCLIC OXYGEN COMPOUNDS; HYDROGEN ISOTOPES; HYDROXY COMPOUNDS; ISOTOPES; KETONES; LIGHT NUCLEI; NUCLEI; ODD-EVEN NUCLEI; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; ORGANIC OXYGEN COMPOUNDS; PHENOLS; POLYPHENOLS; PYRANS; RADICALS; SEPARATION PROCESSES; SPECTRA; STABLE ISOTOPES

Optional Information

Notes
20 refs., 5 figs., 3 tabs.