87954-40-3Relevant articles and documents
Acrylic acid 3, 3, 5-trimethyl cyclohexanol ester method for the synthesis of
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Paragraph 0018-0020, (2017/05/12)
The invention discloses a synthetic method of 3,3,5-trimethyl-cyclohexanol acrylate. The method comprises the following steps: (1) mixing acrylic acid with 3,3,5-trimethyl-cyclohexanol in a flask in which a condensation tube is inserted, and stirring; heating, carrying out reflux condensing, and when the temperature reaches a temperature for stable reflux, adding a catalyst for reacting, wherein the mole ratio of acrylic acid to 3,3,5-trimethyl-cyclohexanol is 1 to (1.2-3.8), the catalyst is a p-toluene sulfonic acid, and the application amount of the catalyst accounts for 0.5-2.0% of the total weight of all reactants; (2) after the reaction is performed for 4-6 h, taking down the condensation tube, installing a water segregator, continuing to heat to 120-130 DEG C, carrying out reaction under heat preserving for 3-6 h, and after the reaction is completed, carrying out reduced pressure distillation to remove excessive alcohol and to obtain a product, wherein in the whole reaction process, nitrogen is fed. According to the method, the conversion rate of acrylic acid reaches over 90%; the product is light in color and good in quality, and recovered alcohol is good in quality, and can be applied for many times.
