Physical organic chemistry of benzisoxazoles. IV. Origins and catalytic nature of the solvent rate acceleration for the decarboxylation of 3-carboxybenzisoxazoles
Most efficient intramolecular general acid catalysis of acetal hydrolysis by the carboxy group
作者:Anthony J. Kirby、Adrian Parkinson
DOI:10.1039/c39940000707
日期:——
The hydrolysis of 4-methoxymethoxybenzisoxazole-3-carboxylic acid (halflife 31 s at 39 °C) is the fastest measured for a methoxymethyl acetal: catalysis by the neighbouring CO2H group is facilitated by a strong intramolecular hydrogen bond.