tautomer

tau·tom·er·ism

T0061800 (tô-tŏm′ə-rĭz′əm)n. Chemical isomerism characterized by facile interconversion of isomeric forms in equilibrium, especially by migration of a hydrogen atom.

[tauto- + (iso)merism.]

tau′to·mer (tô′tə-mər) n.tau′to·mer′ic (tô′tə-mĕr′ĭk) adj.

tautomer

(ˈtɔːtəmə) n (Elements & Compounds) either of the two forms of a chemical compound that exhibits tautomerism

Translations

tautomer

(tô`təmər), one of two or more structural isomersisomer
, in chemistry, one of two or more compounds having the same molecular formula but different structures (arrangements of atoms in the molecule). Isomerism is the occurrence of such compounds. Isomerism was first recognized by J. J. Berzelius in 1827.
..... Click the link for more information. that exist in equilibrium and are readily converted from one isomeric form to another. Of the various types of tautomerism that are possible, two are commonly observed. In keto-enol tautomerism a simultaneous shift of electrons and a hydrogen atom occurs; it was first observed by K. Meyer in the ethyl ester of 3-oxobutanoic acid (ethyl acetoacetate), which occurs naturally as a mixture of the two forms. Ring-chain tautomerism, first recognized by Emil Fischer, is exhibited by glucose. It arises as a result of the aldehyde group (-CHO) in a sugar chain molecule reacting with one of the hydroxy groups (-OH) in the same molecule to give it a cyclic (ring-shaped) form.

单词	tautomer
释义	tautomer tau·tom·er·ism T0061800 (tô-tŏm′ə-rĭz′əm)n. Chemical isomerism characterized by facile interconversion of isomeric forms in equilibrium, especially by migration of a hydrogen atom. [tauto- + (iso)merism.] tau′to·mer (tô′tə-mər) n.tau′to·mer′ic (tô′tə-mĕr′ĭk) adj. tautomer (ˈtɔːtəmə) n (Elements & Compounds) either of the two forms of a chemical compound that exhibits tautomerism Translations tautomer tautomer (tô`təmər), one of two or more structural isomersisomer , in chemistry, one of two or more compounds having the same molecular formula but different structures (arrangements of atoms in the molecule). Isomerism is the occurrence of such compounds. Isomerism was first recognized by J. J. Berzelius in 1827. ..... Click the link for more information. that exist in equilibrium and are readily converted from one isomeric form to another. Of the various types of tautomerism that are possible, two are commonly observed. In keto-enol tautomerism a simultaneous shift of electrons and a hydrogen atom occurs; it was first observed by K. Meyer in the ethyl ester of 3-oxobutanoic acid (ethyl acetoacetate), which occurs naturally as a mixture of the two forms. Ring-chain tautomerism, first recognized by Emil Fischer, is exhibited by glucose. It arises as a result of the aldehyde group (-CHO) in a sugar chain molecule reacting with one of the hydroxy groups (-OH) in the same molecule to give it a cyclic (ring-shaped) form. tautomer tautomer [taw´to-mer] a chemical compound exhibiting, or capable of exhibiting, tautomerism.
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