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Method of preparing ester compound and ester compound prepared thereby
US9393544B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9393544-B2 |
| Application number | US-201414556688-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 1, 2014 |
| Priority date | Dec 3, 2013 |
| Publication date | Jul 19, 2016 |
| Grant date | Jul 19, 2016 |
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Abstract
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This invention relates to a method of preparing an ester compound, including adding carboxylic acid to a mixture of glycerol and acetone in the presence of a sulfuric acid catalyst and applying an ultrasonic wave to induce an esterification reaction, and to an ester compound prepared thereby.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of preparing an ester compound, comprising: adding carboxylic acid to a mixture of glycerol and acetone in the presence of a sulfuric acid catalyst, and applying an ultrasonic wave to induce an esterification reaction, wherein the ester compound is any one or more selected from the group consisting of (2,2-dimethyl-1,3-dioxolan-4-yl)methyl formate, 2,2-dimethyl-1,3-dioxan-5-yl formate, glyceryl formate and 2-hydroxypropane-1,3-diyl diformate. 2. The method of claim 1 , wherein the method is a one-pot process. 3. The method of claim 1 , wherein applying the ultrasonic wave is performed at a power density of 20-700 W/cm 2 . 4. The method of claim 1 , wherein applying the ultrasonic wave is performed at a power density of 70-500 W/cm 2 . 5. The method of claim 1 , wherein applying the ultrasonic wave is performed for 1-400 min. 6. The method of claim 1 , wherein applying the ultrasonic wave is performed for 5-100 min. 7. The method of claim 1 , wherein the acetone is added in an amount of 3-15 equivalents based on the glycerol. 8. The method of claim 1 , wherein the carboxylic acid is formic acid, which is added in an amount of 1-5 equivalents based on the glycerol. 9. The method of claim 1 , wherein the esterification reaction is carried out at −20-10° C. 10. The method of claim 1 , wherein the ester is prepared at a yield of 30% or more.
Assignees
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Classifications
- B01J19/10Primary
employing sonic or ultrasonic vibrations · CPC title
not condensed with other rings · CPC title
esterified · CPC title
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Frequently asked questions
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- What does patent US9393544B2 cover?
- This invention relates to a method of preparing an ester compound, including adding carboxylic acid to a mixture of glycerol and acetone in the presence of a sulfuric acid catalyst and applying an ultrasonic wave to induce an esterification reaction, and to an ester compound prepared thereby.
- Who is the assignee on this patent?
- Lg Chemical Ltd
- What technology area does this patent fall under?
- Primary CPC classification B01J19/10. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jul 19 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).