Title of article
NMR structure characterization of a new vinylpyranoanthocyanin–catechin pigment (a portisin)
Author/Authors
Mateus، نويسنده , , Nuno M.C. Oliveira، نويسنده , , Joana and Santos-Buelga، نويسنده , , Celestino and Silva، نويسنده , , Artur M.S. and de Freitas، نويسنده , , Victor، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2004
Pages
3
From page
3455
To page
3457
Abstract
A new polyphenolic compound, the structure of which corresponds to a pyranomalvidin-3-glucoside linked to a (+)-catechin unit through a vinyl linkage, has been characterized by UV–vis, MS and NMR spectroscopy. This compound was obtained in an aqueous alcoholic solution from the reaction between a malvidin-3-glucoside–pyruvic acid derivative and (+)-catechin in the presence of acetaldehyde.
Keywords
anthocyanin , Flavanol , Catechin , Blue colour , pyruvic acid , Portisin
Journal title
Tetrahedron Letters
Serial Year
2004
Journal title
Tetrahedron Letters
Record number
1841412
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