Preparation of p-tolyl benzyl ether by phase transfer catalyst

P-tolyl benzyl ether was prepared by the reaction of p-cresol and benzyl chloride with phase transfer catalyst.The effects of reaction temperature,reaction time,material ratio and the dosage of catalyst on the reaction result were studied.The proper technological conditions were identified as follows,reaction temperature 110 ℃,reaction time 3 h,(n(p-)cresol)∶n(benzyl chloride)=1∶1.2,n(p-cresol)∶n(sodium hydroxide)=1∶1.1,the dosage of catalyst is 9.26 % (mass,based p-cresol).The yield of p-tolyl benzyl ether can achieve 93.43 %(mass).Purity of p-tolyl benzyl ether is (98.5 %)(mass).