2005•Unpublished venueRequires access
Synthesis for Ethyl p-Hyclroxybenzonate
Liu Jing, Yunfang Wang
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Abstract
The preparation of ethyl p-hyclroxybenzonate by the reaction of p-hyclroxybenzonate acid with ethanol,by using aminosulfonic acid as a catalyst,and its various factors that effect the esterification have been discussed.It proves that the catalyst is an excellent catalyst for the synthesis of ethyl p-hyclroxybenzonate,feasible to be used repeatedly,and less pollution to environment.The optimum reaction conditions are the molar of the acid to ethanol 1:4,the amount of catalyst to the total 0.103:1(the reaction time: 3 hours).With reflux temperature,under these conditions,product recovery rate is 90.38%