Acidity Effect of Zsm-5 Zeolites on Phenol Methylation Reaction

Highly active and selective AlSBA-15 catalysts for the vapor phase tert-butylation of phenol

“…The alkylation of phenol with tert-butanol has been intensively studied in the presence of different catalysts such as aluminum chloride, phosphoric acid, sulfuric acid, silicaalumina, cation exchange resins and microporous molecular sieves [17][18][19][20][21][22][23][24][25][26]. tert-Butyl derivatives of phenol are precursors for a number of commercially important antioxidants and intermediates in the synthesis of various agrochemicals, flagrances, thermoresistant polymers and protecting agents for plastics [16].…”