Journal
TETRAHEDRON LETTERS
Volume 49, Issue 4, Pages 619-623Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2007.11.147
Keywords
polyphenols; flavonoid; enzymatic oxidation; dismutation
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Several flavonols have been transformed upon treatment by Trametes versicolor laccase. Most of the major oxidation products have been isolated by HPLC as pure compounds and their structures have been, when possible, investigated through spectral methods (HPLC-MS and NMR). The results are coherent with the predominance of a dismutation process, leading to cation formation, over direct radical-radical coupling. (c) 2007 Elsevier Ltd. All rights reserved.
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