Synthesis and structural characterization of novel pyranoluteolinidin dyes
authors Cruz, L; Sousa, JLC; Marinho, A; Mateus, N; de Freitas, V
nationality International
journal TETRAHEDRON LETTERS
author keywords Flavylium derivatives; Cycloaddition reactions; Pyrano-3-deoxyanthocyanins; Photosensitizers; NMR spectroscopy
keywords PIGMENTS; SALTS; WINE; 3-DEOXYANTHOCYANIDINS; PYRANOANTHOCYANINS; ANTHOCYANINS; ANTIOXIDANT; CHEMISTRY
abstract 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. (C) 2016 Elsevier Ltd. All rights reserved.
publisher PERGAMON-ELSEVIER SCIENCE LTD
issn 0040-4039
year published 2017
volume 58
issue 2
beginning page 159
ending page 162
digital object identifier (doi) 10.1016/j.tetlet.2016.11.123
web of science category Chemistry, Organic
subject category Chemistry
unique article identifier WOS:000392038900011
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  impact metrics
journal analysis (jcr 2017):
journal impact factor 2.125
5 year journal impact factor 1.954
category normalized journal impact factor percentile 53.509
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