Enolization of Aldehydes and Ketones: Structural Effects on Concerted Acid−Base Catalysis
作者:Anthony F. Hegarty、Joseph P. Dowling、Stephen J. Eustace、Michelle McGarraghy
DOI:10.1021/ja9729544
日期:1998.3.1
the product of the consecutive rate constants (kA·kB) and the concerted (third order) rate constants (kAB). This implies that the concerted pathway is important only when both the generalacid and the generalbase terms are significant; this will be useful in designing other systems which might show such concertedcatalysis. In the case of aldehydes, a slope of 0.97 was found for this plot, which compares
Concerted catalysis in the enolisation of aldehydes
作者:Anthony F. Hegarty、Joe Dowling
DOI:10.1039/c39910000996
日期:——
At high buffer concentrations the enolisation of aldehydes is markedly catalysed simultaneously by acidic and basic species; the magnitude of the ‘third-order term’ can be related directly to the importance of the individual acid and base catalysed terms.