The method of preparing 4,4'-dimethyl dibenzyl ether

The present invention discloses a method for preparing 4,4'-dimethyl-dibenzyl ethers, comprising the steps of: 1) will benzyl chloride, alkali solution and a phase transfer catalyst added to the reaction vessel at 106 ~ 122 deg.] C under sufficient reaction; 2) the reaction solution was cooled feed crystals by suction filtration, dried to give 4,4-dimethyl crude benzyl ether; and 3 the 4,4'-dimethyl) The crude benzyl ether was recrystallized to obtain 4,4'-dimethyl dibenzyl ether product. The preparation method is simple, high efficiency, low production cost and easy industrial production.