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ChemicalBook CAS DataBase List Butyl stearate
123-95-5

Butyl stearate synthesis

7synthesis methods
By reacting silver state with n-butyl iodide at 100°C by transesterification of glyceryl tristearate (tristearin) with n-butyl alcohol.
-

Yield:123-95-5 90.8%

Reaction Conditions:

with 3H(1+)*O40SiW12(4-)*C21H22O3PS(1+)Reflux;Dean-Stark;

Steps:

The procedure for the esterification
General procedure: Acidic pseudo-IL (0.05 g) was loaded into a 50-mL threenecked flask with a magnetic stirrer, and a reflux condenser. A Dean-Stark apparatus was used to remove the water continuously from the reaction mixture. n-Butanol (14.8 g,0.2 mol) and aliphatic acid (with -OH/-COOH molar ratio = 1.5:1) were added and reaction was carried out under reflux condition. The reaction progress was monitored by the acid-base titration. The conversion of the reaction was calculated on the acidity using the following equation: Conversion (%) = [1 - (final acidity)/(initial acidity)] × 100%. Here, the acidity from acidic pseudo-IL was excluded. For final and initial acidity, the acidity from the pseudo-IL was subtracted. The products were confirmed using GC-MS analysis. After reaction, the IL was separated from the reaction mixture by cooling the temperature, which made the catalyst recovery quite simple.

References:

Shi, Yingxia;Liang, Xuezheng [Chemical Papers,2019,vol. 73,# 6,p. 1413 - 1421]

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