Phenol alkylation process

摘要

Phenol is di-orthoalkylated in high yield by reacting, in a first stage, phenol containing only 1 mole of an aluminum phenoxide for each 100-800 moles of phenol with an olefin at 85-175 DEG C until the reaction mixture contains 3 wt percent or less phenol and then, in a second stage, continuing the reaction at 25-80 DEG C until the mixture contains a substantial amount of 2,6-di-alkylphenol.