Title:
METHOD FOR PREPARING METHYL ESTER COMPOUND
Document Type and Number:
WIPO Patent Application WO/2023/109752
Kind Code:
A1
Abstract:
A method for preparing a methyl ester compound, which method comprises: subjecting the raw materials of a carboxyl compound, methanol and/or dimethyl ether to an esterification reaction to obtain a methyl ester compound, wherein the general formula I of the carboxyl compound is R-CH2-COOH, where R is a methoxy or hydroxyl; and the methyl ester compound comprises at least one of methyl methoxyacetate and methyl glycolate. A method for preparing the methyl glycolate comprises the steps of: a) subjecting methylal and carbon monoxide to a carbonylation reaction to obtain methyl methoxyacetate; b) subjecting the methyl methoxyacetate and water to a hydrolysis reaction to obtain the methyl glycolate; and c) subjecting glycolic acid and methoxyacetic acid, as well as methanol and dimethyl ether, to an esterification reaction to obtain the methyl glycolate. The method can greatly simplify the separation process, can save the energy consumption, and provides a new synthesis route for synthesizing a methyl ester compound, especially methyl glycolate.
Inventors:
NI YOUMING (CN)
ZHU WENLIANG (CN)
LIU ZHONGMIN (CN)
ZHU WENLIANG (CN)
LIU ZHONGMIN (CN)
Application Number:
PCT/CN2022/138385
Publication Date:
June 22, 2023
Filing Date:
December 12, 2022
Export Citation:
Assignee:
DALIAN INST CHEM & PHYSICS CAS (CN)
International Classes:
B01J29/08; C07C67/08; B01J29/40; B01J29/65; B01J29/70; C07C67/24; C07C67/31; C07C67/37; C07C69/675; C07C69/708
Foreign References:
| CN112705253A | 2021-04-27 | |||
| CN112705238A | 2021-04-27 | |||
| CN1180067A | 1998-04-29 | |||
| CN107445825A | 2017-12-08 | |||
| US20170001941A1 | 2017-01-05 |
Other References:
CHEN, DONGLIANG ET AL.: "Study on The Synthesis of Methyl Glycolate", SPECIALITY PETROCHEMICALS, no. 3, 31 May 2000 (2000-05-31), XP009547123
Attorney, Agent or Firm:
PERIODIC LAW FIRM (CN)
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