Role of the acidity of the ketone in determining the mechanism of enolization via proton abstraction from ketone, carbinolamine, or imine. Catalysis of the enolization of 2,4-pentanedione and 3-methyl-2,4-pentanedione by oxyanions and by primary, secondary, and tertiary amines
作者:Paula Yurkanis Bruice
DOI:10.1021/ja00176a041
日期:1990.9
presence of primaryamines, secondaryamines, tertiary amines, and oxyanion catalysts. All four classes of bases were found to catalyze keto-enol interconversion by the base-catalyzed proton-abstraction mechanism. This is unlike what was found for keto-enol interconversion of oxaloacetate where only oxyanions were found to follow the base-catalyzed proton-abstraction mechanism; primary, secondary, and tertiary