Concerted general acid and nucleophilic catalysis of acetal hydrolysis. A simple model for the lysozyme mechanism
作者:Kathryn E. S. Dean、Anthony J. Kirby
DOI:10.1039/b110948k
日期:2002.2.25
The monoanion is the most reactive ionic form of the symmetrical formaldehyde acetal of 4-hydroxybenzofuran-3-carboxylic acid 1. The evidence is consistent with a mechanism in which the carboxylate anion acts as a nucleophile to assist the general acid catalysed cleavage of the C–O bond to the leaving group: the initial product is the cyclic acylal 5 and the extra acceleration derived from the participation