Li De-jiang
2003
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Journal
Journal of Huanggang Normal University
Abstract
We synthesized benzyl 4-hydroxybenzoate with sodium 4-hydrox yb enzoate and benzyl chloride in the presence of water and triethylamine (ET 3N). Here,we took Et 3N as the phase transfer catalyst of the synthesis. Compared w ith other synthetical methods for benzyl 4-hydroxybenzoate, this process is sim ple and of economic benefits. Experimental results show that the ratio of sodium 4-hydroxybenzoate to benzyl chloride is 1∶1.8, the ratio of triethylamine to sodium 4-hydroxybenzoate is 0.4∶1,and the reaction time is 7 h,and the yie ld and purity of the ester are 80.3% and 99%, respectively.