Abstract
The reaction of dihydroquercetin, quercetin, and rutin with Cu(II) acetate in aqueous solution is studied. Quercetin and dihydroquercetin form complexes with Cu. The water-insoluble complexes are characterized as chelates of the 3,4-positions of the main γ-pyrone ring. Electronic spectroscopy showed the presence of stable polynuclear rutin complexes of composition rutin :Cu = 1:x, where x > 2.
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Mel'nikova, N.B., Ioffe, I.D. & Tsareva, L.A. Reaction of Bioflavonoids with Copper(II) Acetate in Aqueous Solution. Chemistry of Natural Compounds 38, 33–39 (2002). https://doi.org/10.1023/A:1015721529647
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DOI: https://doi.org/10.1023/A:1015721529647