Synergistic role of Lewis and Bronsted acidities in Friedel-Crafts alkylation of resorcinol over gallium-zeolite beta

摘要

The role of Lewis and Bronsted acidities in alkylation of resorcinol is demonstrated through the gallium-zeolite beta by varying the amount of Lewis and Bronsted acid sites. The synergism of Lewis and Bronsted acid sites takes place heterogeneously in Friedel-Crafts alkylation of resorcinol with methyl tert-butyl ether to produce 4-tert-butyl resorcinol and 4,6-di-tert-butyl resorcinol as the major and minor products, respectively.