keto-enol tautomerism

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keto-enol tautomerism

(ˈkiːtəʊˈiːnɒl)
n
(Chemistry) chem tautomerism in which the tautomers are an enol and a keto form. The change occurs by transfer of a hydrogen atom within the molecule
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As a [beta]-diketone, curcumin also exists as a keto-enol tautomer that chelates transition metal ions with high affinity.
The compound also exists as a keto-enol tautomer in aqueous solution that can form stable complexes stoichiometrically with transition metals including copper (II) (Kanhathaisong et al.