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Synthesis of a new pyranoanthocyanin dimer linked through a methyl-methine bridge |
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| Authors: | Joana OliveiraNuno Mateus,José E. Rodriguez-borgesEurico J. Cabrita,Artur M.S. SilvaVictor de Freitas |
| Affiliation: | a Centro de Investigação em Química, Departamento de Química, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, 687, 4169-007 Porto, Portugal b REQUIMTE/CQF, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal c Departamento de Química & QOPNA, Universidade de Aveiro, 3810-193 Aveiro, Portugal |
| Abstract: | Two new anthocyanin-derived compounds corresponding to the ethylpyranomalvidin-3-glucoside and the pyranomalvidin-3-glucoside dimer linked through a methyl-methine bridge were synthesized for the first time and their structure characterized by LC-DAD/MS and NMR spectroscopy. The latter was obtained in a hydroalcoholic model solution through the reaction of the carboxypyranomalvidin-3-glucoside with ethylpyranomalvidin-3-glucoside and displays a blue/green color in solution. |
| Keywords: | Carboxypyranomalvidin-3-glucoside/vitisin A Ethylpyranomalvidin-3-glucoside Blue/green color Pyranomalvidin-3-glucoside dimer |
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