Keto-enol Tautomerism

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In organic chemistry, keto-enol tautomerism refers to a chemical equilibrium between a keto form (a ketone or an aldehyde) and an enol. The enol and keto forms are said to be tautomers of each other. The interconversion of the two forms involves the movement of a proton and the shifting of bonding electrons; hence, the isomerism qualifies as tautomerism. A compound containing a carbonyl group (C=O) is normally in rapid equilibrium with an enol tautomer, which contains a pair of doubly bonded carbon atoms adjacent to a hydroxyl ( OH) group, C=C-OH. The keto form predominates at equilibrium for most ketones. Nonetheless, the enol form is important for some reactions. Furthermore, the deprotonated intermediate in the interconversion of the two forms, referred to as an enolate anion, is important in carbonyl chemistry, in large part because it is a strong nucleophile.

Weitere Informationen

  • Allgemeine Informationen
    • GTIN 09786130728991
    • Editor Frederic P. Miller, Agnes F. Vandome, John McBrewster
    • Genre Chemie
    • Größe H15mm x B225mm x T151mm
    • EAN 9786130728991
    • Format Fachbuch
    • Titel Keto-enol Tautomerism
    • Gewicht 148g
    • Herausgeber Alphascript Publishing
    • Anzahl Seiten 96

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