Catalysis and inhibition of ester hydrolysis in the presence of resorcinarene hosts functionalized with dimethylamino groups
作者:Giorgio Cevasco、Sergio Thea、Daniele Vigo、Andrew Williams、Flora Zaman
DOI:10.1002/poc.1101
日期:2006.10
Complexation and catalysis of two calixresorcinarene (RES) derivatives with nucleophilic N,N-dimethylamino functions attached to their upper rims in the hydrolysis of carboxylate and sulfonate esters of 4-nitrophenol and 2,4-dinitrophenol have been investigated. Rate constants obey the complexation equation:
Structure-reactivity correlations for reactions of substituted phenolate anions with acetate and formate esters
作者:Dimitrios Stefanidis、Sayeon Cho、Sirano Dhe-Paganon、William P. Jencks
DOI:10.1021/ja00058a006
日期:1993.3
substituted phenolate anions with m-nitrophenyl, p-nitrophenyl, and 3,4-dinitrophenyl formates follow nonlinear BrOnsted-type correlations that might be taken as evidence for a change in the rate-limiting step of a reaction that proceeds through a tetrahedral addition intermediate. However, the correlation actually represents two different BrOnsted lines that are defined by meta- and para-substituted phenolate