Title:
LOW-TEMPERATURE LIQUID-PHASE METHOD FOR PREPARING ACRYLATE
Document Type and Number:
WIPO Patent Application WO/2018/209735
Kind Code:
A1
Abstract:
The invention provides a low-temperature liquid-phase method for preparing acrylate. The low-temperature liquid-phase method for preparing acrylate of the present invention comprises the following steps: adding, into a reactor, acetate, a formaldehyde source, organic amine, a solvent, and an in-situ catalyst by proportion, and stirring and mixing same for an in-situ catalytic reaction, so as to obtain acrylate. In the present invention, a low-temperature liquid-phase method is adopted to prepare acrylate; the operation process is simple, and conditions are mild; depolymerization of polyformaldehyde, activation of formaldehyde and acetate, and an aldol condensation reaction can be simultaneous achieved at 10-25oC under a liquid-phase condition; the cost and energy consumption are low; the method facilitates industrial application; the maximum yield of acrylate can reach 90.7%; and the maximum selectivity of acrylate can reach 94.4%.
Inventors:
LI CHUNSHAN (CN)
WANG GANG (CN)
LI ZENGXI (CN)
YANG DAN (CN)
CHEN HONGNAN (CN)
ZHANG SUOJIANG (CN)
WANG GANG (CN)
LI ZENGXI (CN)
YANG DAN (CN)
CHEN HONGNAN (CN)
ZHANG SUOJIANG (CN)
Application Number:
PCT/CN2017/086897
Publication Date:
November 22, 2018
Filing Date:
June 01, 2017
Export Citation:
Assignee:
INST PROCESS ENG CAS (CN)
International Classes:
C07C67/343; C07C69/54
Domestic Patent References:
| WO2014046441A1 | 2014-03-27 | |||
| WO2014053818A1 | 2014-04-10 |
Foreign References:
| US4324908A | 1982-04-13 | |||
| CN105801591A | 2016-07-27 | |||
| JPH11140016A | 1999-05-25 |
Other References:
D. A. EVANS ET AL.: "Enantioselective Aldol Condensations. 2. Erythro-Selective Chiral Aldol Condensations via Boron Enolates", J. AM. CHEM. SOC., vol. 103, no. 8, 1 April 1981 (1981-04-01), pages 2129, XP055549332, ISSN: 0002-7863
Attorney, Agent or Firm:
BEYOND ATTORNEYS AT LAW (CN)
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