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Younes Valadbeigi and Hossein Farrokhpour Theoretical study on keto–enol tautomerism and isomerization in pyruvic acid International Journal of Quantum Chemistry 113

Article first published online: 16 MAY 2013 | DOI: 10.1002/qua.24467

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Pyruvic acid is involved in the metabolism of carbohydrates. Keto–-enol tautomerism in pyruvic acid can involve the transformation of the more stable keto form into the enol form. This is catalyzed by water, acting synchronously as a proton donor and proton acceptor. This study finds that a transition state structure with a hexagonal ring is formed, which is more stable than a tetragonal ring formed in the absence of water.

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