79.Keto-enol tautomerization-醛酮的烯醇式转化 本视频介绍了醛酮的烯醇式转化相关知识 可汗学院:MCAT考试-化学课程(网易公开课编辑整理)
keto–enol tautomerization on metalsmodel heterogeneous catalysisscanning tunneling microscopyvibrational spectroscopy on surfacesTautomerisation of simple carbonyl compounds to their enol counterparts on metal surfaces is envisaged to enable an easier route for hydrogenation of the C=O bond in heterogeneously...
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Theβ-ketoamine COFs, formed by reversible Schiff base reaction and irreversible enol-to-keto tautomerization, are a huge and representative category of highly stable COFs. In this work, we designed a series ofβ-ketoamine COFs with the same topology and similar atomic composition as a model sy...
Novo (1991) Keto-enol tautomerization of 2-(20-hy- droxyphenyl)benzoxazole and 2-(20-hydroxy-40-methylphenyl) benzoxazole in the triplet state: ... H Eisenberger,B Nickel,AA Ruth,... - 《Cheminform》 被引量: 130发表: 1991年 Excited-state intramolecular proton transfer and rotamerism of...
The catalytic effect of water on the keto-enol tautomerisation reaction of thioformic acid A detailed theoretical study of the proton transfer in the HC(O)SH HC(S)OH reaction in the gas phase and catalysed by water is presented. The mechanism is... F Duarte,A Toro-Labbé - 《Molecular...
The alkyl enol-diketones, thus formed, undergo thermal tautomerization to the original keto forms in a few days. The alkyl enol-diketones show fast internal conversion from the excited singlet state to the ground state without yielding the corresponding isomeric forms (rotamer). Based on the ...
Based on the investigations of the co‐adsorption behavior of acetophenone and hydrogen, we conclude that keto–enol tautomerization occurs in the intramolecular process and does not involve hydrogen transfer through the surface hypothesized previously.Angewandte Chemie...
Tautomerisation of simple carbonyl compounds to their enol counterparts on metal surfaces is envisaged to enable an easier route for hydrogenation of the C=O bond in heterogeneously catalyzed reactions since the activation barrier for hydrogenation of the C=C bond in enol is typically lower than ...
Keto–Enol Tautomeric Equilibrium of Acetylacetone Solution Confined in Extended Nanospaces We aim to clarify the effects of size confinement, solvent, and deuterium substitution on keto-enol tautomerization of acetylacetone (AcAc) in solutions confined in 10-100 nm spaces (i.e., extended nanospaces...