keto-enol tautomerism

/ˌkitoʊ-ˌinɒl tɔˈtɒmərɪzəm/ (say .keetoh-.eenol taw'tomuhrizuhm)

noun
a type of tautomerism involving migration of a proton, in which, at any instant, the individual molecules are present in the mixture as either a keto form or an enol.

Australian English dictionary. 2014.

Look at other dictionaries:

  • Keto-enol tautomerism — 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… …   Wikipedia

  • keto-enol tautomerism — ketoenolinė tautomerija statusas T sritis chemija apibrėžtis Tautomerija, kai vienas tautomeras yra karbonilinis junginys, o kitas – enolis. atitikmenys: angl. keto enol tautomerism rus. кето енольная таутомерия …   Chemijos terminų aiškinamasis žodynas

  • keto-enol tautomerism — ˈkēd.ō+... noun Etymology: ket + enol : tautomerism in which the keto and enol forms of a compound (as ethyl acetoacetate) are in equilibrium …   Useful english dictionary

  • keto-enol tautomerism — tautomerism between two compounds, one an enol and the other a ketone, that equilibrate by transfer of a proton. The keto form usually predominates except where the enol form is stabilized by conjugation with other double bonds …   Medical dictionary

  • Keto-Enol-Tautomerie — Die Tautomerie (von gr. tautó = das Gleiche; gr. meros = der Anteil) bezeichnet in der Chemie eine besondere Form der Isomerie. Sie wurde 1876 von Alexander Michailowitsch Butlerow (1828–1886) entdeckt und 1885 von Conrad Peter Laar als Begriff… …   Deutsch Wikipedia

  • tautomerism — tautomeric /taw teuh mer ik/, adj. /taw tom euh riz euhm/, n. Chem. the ability of certain organic compounds to react in isomeric structures that differ from each other in the position of a hydrogen atom and a double bond. [1880 85; TAUTO +… …   Universalium

  • Enol — Enols (also known as alkenols) are alkenes with a hydroxyl group affixed to one of the carbon atoms composing the double bond. Enols and carbonyl compounds (such as ketones and aldehydes) are in fact isomers; this is called keto enol… …   Wikipedia

  • enol — A compound possessing a hydroxyl group (alcohol) attached to a doubly bonded (ethylenic) carbon atom (–CH=CH(OH)–); properly italicized when attached as a prefix or infix to an otherwise complete name; e.g., e. pyruvate; phosphoe.pyruvate;… …   Medical dictionary

  • enol-keto tautomerism — noun : keto enol tautomerism …   Useful english dictionary

  • tautomerism — Form of isomerism in which there are two or more arrangements usually of hydrogens bonded to oxygen. Keto enol tautomerism is one common example. The balance between two coexisting tautomers may shift with time or as a result of changes in… …   Dictionary of molecular biology

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