Abstract
SO
3H-functionalized ionic liquids could be an efficient catalyst for the alkylation of phenol with
tert-butyl alcohol (TBA) and were found to catalyze this reaction with good conversion and selectivity.
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Alkylation reaction of phenol with
tert-butyl alcohol (TBA) catalyzed by SO
3H-functionalized ionic liquids has been investigated. The influences of different ionic liquids, reaction time, reaction temperature, reactant ratio (mole ratio of phenol to that of TBA), the amount and the recycle of ionic liquid were studied. The conversion of phenol and the selectivity of 2,4-DTBP were 80.4 and 60.2%, respectively, under optimum reaction condition. At the same time, the reaction mechanism was discussed based on the distribution of products.