
Homosalate synthesis
- Product Name:Homosalate
- CAS Number:118-56-9
- Molecular formula:C16H22O3
- Molecular Weight:262.34

116-02-9

119-36-8

118-56-9
In a 250 mL three-necked flask, 10.0 g of methyl salicylate and 23.3 g of 3,3,5-trimethylcyclohexanol were added as reaction feedstock, followed by 0.50 g of potassium carbonate as a catalyst and 0.1 g of ammonium bromide as a co-catalyst. The reaction mixture was heated to 180 °C and the reaction was continued at this temperature for 13 hours. The conversion of methyl salicylate was monitored by gas chromatography during the reaction. Upon completion of the reaction, the products were separated using a vacuum distillation unit, and the fore grade fractions were recycled. Finally, 13.98 g of 3,3,5-trimethylcyclohexyl 2-hydroxybenzoate was obtained as a colorless liquid with a yield of 81.1%, and the purity was analyzed by gas chromatography to be greater than 99%.
Yield:118-56-9 81.1%
Reaction Conditions:
with potassium carbonate;ammonium bromide at 180; for 13 h;Concentration;Reagent/catalyst;Temperature;
Steps:
2 Example 2
250 ml three-necked flask, 10.0 g of methyl salicylate, 23.3 g of 3,3,5-trimethylcyclohexanol, 0.50 g of potassium carbonate,Ammonium bromide 0.1g, heated to 180 reaction 13h, gas chromatography detection reaction system methyl salicylate conversion was 97.2%.To vacuum distillation unit, the former fraction recovery to be applied,ColorlessMing of the Hu Moluo13.98 g,Yield 81.1%, GCPurity greater than 99%.
References:
CN105541634,2016,A Location in patent:Paragraph 0023; 0024