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ChemicalBook CAS DataBase List Phenyl salicylate
118-55-8

Phenyl salicylate synthesis

13synthesis methods
Phenyl salicylate was synthesized by esterification of salicylic acid and phenol in the presence of catalyst sulfuric acid. The esterification liquid is neutralized, washed with water and distilled to obtain the finished product. It also can preparation by the action of phosphorus oxychloride on a mixture of phenol and salicylic acid (Merck Index, 1968).
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Yield:118-55-8 74%

Reaction Conditions:

with thionyl chloride at 75 - 145; for 4 h;Temperature;

Steps:

3 Example 3
In a reaction vessel equipped with a stirrer, a thermometer, a reflux condenser and a dropping funnel, 1.31 mol of benzonitrile and 1.23mol of salicylic acid were added and the solution temperature was raised to 145°C. The stirring speed was controlled to 170 rpm. After 40 min, 0.23mol of thionyl chloride was added and the reaction temperature was maintianed at 138°C. Then the temperature of the solution was reduced to 75°C with the reaction time controlled to 4h. The reaction solution was divided into two layers. The upper layer was separated and added to 200 ml of potassium bromide solution to obtain a solid which was pulverized and washed with 500 ml of a potassium hydrogencarbonate solution having a mass fraction of 70% 6 times, calcium sulfate dehydration, mass fraction of 95% acetonitrile solution was recrystallized, in 197 g of phenyl salicylate, yield 74%.

References:

Chengdu Dongdian Aier Technology Co., Ltd.;Chu, Donghong CN105601511, 2016, A Location in patent:Paragraph 0014; 0015

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