SOLVENT-FREE LIQUID PHASE tert-BUTYLATION OF m-CRESOL USING A SOLID ACID CATAEYST COMPRISING H4SiW_(12)O_(40) AND NEUTRAL Al2O3

摘要

Liquid phase tert-butylation of m-cresol was carried out using 12-tungstosilicic acid supported on neutral alumina by varying different parameters. The reaction has also been carried out by using calcined samples under optimized conditions. The present catalyst shows an excellent activity of 93.2%, conversion of 100% selectivity for the o-isomer, an important industrial product.