Title:
CONTINUOUS SYNTHESIS METHOD FOR SUBSTITUTED BENZOATE ORGANIC MATTER
Document Type and Number:
WIPO Patent Application WO/2020/248279
Kind Code:
A1
Abstract:
The present invention provides a continuous synthesis method for a substituted benzoate organic matter. The continuous synthesis method comprises: in the presence of a catalyst and an organic solvent, continuously feeding an organic matter as represented by formula (I) and oxygen into a continuous reaction device for continuous oxidation reaction to obtain a substituted benzoate organic matter, and performing continuous discharge, wherein the substituted benzoate organic matter has a structure as represented by formula (II). Oxygen is a green reagent, and is cheap and easy to obtain; the present invention would not produce a large amount of waste gas, waste water, and waste residues after the completion of reaction, and the system is easy to handle. The use of continuous reaction operation can reduce the risk of solvent flash evaporation explosion due to high concentration oxygen in batch reactions. Under the same oxidation conditions, the use of a continuous preparation process can reduce the escape of oxygen, greatly increase the utilization of oxygen, simplify the operation, and improve the reaction safety and the yield of substituted benzoate organic matters.
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Inventors:
HONG HAO (US)
LU JIANGPING (CN)
ZHANG ENXUAN (CN)
LIU ZHIQING (CN)
LI CHAO (CN)
LU JIANGPING (CN)
ZHANG ENXUAN (CN)
LIU ZHIQING (CN)
LI CHAO (CN)
Application Number:
PCT/CN2019/091401
Publication Date:
December 17, 2020
Filing Date:
June 14, 2019
Export Citation:
Assignee:
JINLIN ASYMCHEM LABORATORIES CO LTD (CN)
International Classes:
C07C51/245; C07C63/68; C07C63/70; C07C201/12; C07C205/58; C07C205/59
Foreign References:
| US4007223A | 1977-02-08 | |||
| CN109503540A | 2019-03-22 | |||
| US4423245A | 1983-12-27 | |||
| CN1251833A | 2000-05-03 | |||
| CN105237317A | 2016-01-13 |
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (CN)
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