13.1Enolsandenolateions（烯醇和烯醇负离子）OHB:O - O H HB HO+B Resonance-stabilizedanionKetoform(酮式，Stable)烯醇阴离子，Enolateion OHH+HOHHOH-H+ Enolform(烯醇式，unstable)HO Resonance-stabilizedcationKetoform(酮式，Stable)Enolform(烯醇式，unstable)Ketoandenoltautomers(酮和烯醇互变异构体）Ke...
Enol form(烯醇式,unstable)Resonance-stabilized anion烯醇阴离子,Enolate ionKeto form(酮式,Stable)Keto form(酮式, Stable)Enol form(烯醇式, unstable)Resonance-stabilized cationKeto and enol tautomers (酮和烯醇互变异构体)Keto and enol tautomers (酮和烯醇互变异构体)(S)(R)(S)Racemization ( 外...
keto-enol tautomerism (redirected fromKeto-enol tautomer) keto-enol tautomerism (ˈkiːtəʊˈiːnɒl) n (Chemistry)chemtautomerism in which the tautomers are an enol and a keto form. The change occurs by transfer of a hydrogen atom within the molecule ...
Spectroscopic studies of the keto and enol tautomers of 1 -pheny1-3-methyl-4-benzoy1-5 -pyrazolone [J]. Microchem., 1996,53:34-42.Yoshifumi Akama,Aijun Tong.Spectroscopic studies of the keto and enol tautomers of 1-phenyl-3-methyl-4-benzoyl-5-pyrazolone[J].Microchemical Journal,1996,53...
This begs a question. If the keto and enol tautomers aren’t resonance forms, then there must be some process by which they interconvert. So how does this happen? It might be instructive to show how to do it thewrong wayfirst.
Keto-enol tautomerism is the most common tautomery phenomenon.Keto -enol themselves are the real chemical substance. 酮及烯醇互变是互变作用最普通的现象,它们都是真实的化学实体。 Keto-enol tautomerizing of ethyl acetoacetate was studied by UV.It was conformed that the content of enol ethyl acetoac...
When L reacted with RuCl3·3H2O, the terminal acetylene group of the ligand (L) was catalytically hydrated via Markovnikov addition to the corresponding enol (L1) and keto (L2) forms. Two mixed-ligand complexes, trans-[Ru(bpy)(L1)Cl2] and [Ru(bpy)(L2)Cl2], were prepared and ...
The tautomeric enol imine enaminone (phenol quinone) equilibrium of the 1-hydroxy-2-naphthaldehyde Schiff base (2-phenyliminomethyl-naphthalen-1-ol) was ... PI Nagy,WMF Fabian - 《Journal of Physical Chemistry B》 被引量: 39发表: 2006年 Mechanism and relaxation kinetics of photo-induced vale...
Direct characterization of the transient species in the stepwise process and inversion of the stability order of the keto and enol tautomers is presented. ... J Gebicki,and Andrzej Marcinek,J Zielonka - 《Acc Chem Res》 被引量: 114发表: 2004年 Binding of curcumin with glyoxalase I: Molecula...
The double proton transfer (DPT) in the long G•G* Watson-Crick base mispair (|C6N1(G*)N1C6(G)|=36.4º; C1 symmetry), involving keto and enol tautomers of the guanine (G) nucleobase, along two intermolecular neighboring O6H•••O6 (8.39) and N1•••HN1 (6.14 kcal...