The Base-catalyzed Tautomerization of Acetylacetone in Organic Solvents. The Correlation of the Catalytic Coefficient with the Partition Coefficient
作者： Hitoshi Watarai , Nobuo Suzuki
DOI: 10.1246/BCSJ.52.2778
关键词: Tributylamine 、 Catalysis 、 Solvent effects 、 Keto–enol tautomerism 、 Partition coefficient 、 Enol 、 Chemistry 、 Acetylacetone 、 Photochemistry 、 Heterogeneous catalysis
摘要: The keto-enol tautomerization rate of acetylacetone catalyzed by triethylamine or tributylamine was observed in eight organic solvents, and the catalytic coefficient for each process ketonization enolization obtained. A remarkable solvent effect on catalysis discussed following linear free-energy relationship between liquid-liquid partition coefficients keto enol forms. It concluded that, homogeneous base-catalysis, affects change transition state more greatly than those On contrary, heterogeneous silica surface, forms suggested to be main factor governing kinetic effect.
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