Published 1986 | Version v1
Miscellaneous Metadata-only

Structure and synthesis of complexes 4-arylflavan-3-ols and dibenzo[b,d]pyrones from Peltophorum africanum Sond

Creators

Description

The heart wood of Peltophorum africanum Sond. contains a variety of monomeric biflavenoids and pyrano[3,2-c][2]benzopyran-6(2H)-ones and dibenzo[b,d]pyrones (xanthines). Bergenin is the major component of the heart-wood and is accompanied by the 11-0-galloylderivative of which the structure is determined by 13C-NMR-spectroscopy. The structure of 2,3,9,13-tetra hydroxy-6,12-methane-6H,12H-dibenzo[b,f][1,5]dioxsozine is identified by 1H-NMR-spectra. 1H-NMR-spectroscopy and 13C-NMR-spectroscopy is used in the isolation, characterization and synthesis of several flavenoids

Availability note (English)

Available from the Registrar, University of the Orange Free State, P O Box 339, Bloemfontein, 9300, South Africa.

Additional details

Additional titles

Original title (Afrikaans)
Struktuur en sintese van komplekse 4-arielflavan-3-ole en dibenso[b,d] pirone uit Peltophorum africanum Sond

Publishing Information

Imprint Place
Bloemfontein (South Africa)
Imprint Pagination
190 p.

INIS

Country of Publication
South Africa
Country of Input or Organization
South Africa
INIS RN
19026371
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Resource subtype / Literary indicator
Numerical Data, Thesis, Non-conventional Literature
Descriptors DEI
ACETYLATION; CARBON 13; CATALYSIS; CHROMATOGRAPHY; CONDENSATES; CONFIGURATION; COUPLING CONSTANTS; DICHROISM; DIMERS; EXPERIMENTAL DATA; FLAVENOIDS; GLYCOLS; HYDROGEN 1; HYDROXYLATION; INFRARED SPECTRA; MASS SPECTRA; METHYLATION; MOLECULAR STRUCTURE; NMR SPECTRA; NUCLEAR MAGNETIC RESONANCE; STEREOCHEMISTRY; STRUCTURAL CHEMICAL ANALYSIS; SYNTHESIS; ULTRAVIOLET SPECTRA; WOOD; XANTHINES
Descriptors DEC
ACYLATION; ALCOHOLS; CARBON ISOTOPES; CHEMICAL REACTIONS; DATA; EVEN-ODD NUCLEI; HETEROCYCLIC COMPOUNDS; HYDROGEN ISOTOPES; HYDROXY COMPOUNDS; INFORMATION; ISOTOPES; LIGHT NUCLEI; MAGNETIC RESONANCE; NUCLEI; NUMERICAL DATA; ODD-EVEN NUCLEI; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; ORGANIC OXYGEN COMPOUNDS; PURINES; RESONANCE; SEPARATION PROCESSES; SPECTRA; STABLE ISOTOPES