Abstract (EN):
The synthesis and structural characterization by LC-MS and NMR of novel pyranoluteolinidin derivatives are reported. The compounds result from the reactions between luteolinidin and three different carboxylic acids in wine model-like solutions. The three pigments possess different substituents attached to the D ring (methyl, catechol and dimethylaminophenyl groups) and the same catechol group in the B ring, yielding a wide spectrum of colors from yellow to pink-purple.
Idioma:
Inglês
Tipo (Avaliação Docente):
Científica
Nº de páginas:
4