Title:
PREPARATION METHOD FOR SUCROSE-6-CARBOXYLATE
Document Type and Number:
WIPO Patent Application WO/2022/056913
Kind Code:
A1
Abstract:
Provided is a preparation method for sucrose-6-carboxylate. The method of the present application comprises: passing a mixed solution containing sucrose, a mixed solvent and an organotin compound through a gas-liquid exchange reactor, and using an anhydrous dehydration medium to quickly remove moisture generated in a reaction system, so as to efficiently prepare a sucrose organotin ester intermediate. The method can rapidly realize an esterification dehydration reaction in an extremely short time; has good sucrose-6-carboxylate selectivity and a high yield of same; has few side reactions; has a simple reaction process and is simple to operate; is especially suitable for large-scale industrial production; and overcomes the defects of a long reaction time, high energy consumption, many side reactions, operation complexity, a low yield, etc. in the traditional preparation of sucrose-6-carboxylate.
Inventors:
XIA JIAXIN (CN)
JIANG WEIQIANG (CN)
ZHANG ZHENGSONG (CN)
CHEN CHAOHUI (CN)
SHEN DONGDONG (CN)
JIANG WEIQIANG (CN)
ZHANG ZHENGSONG (CN)
CHEN CHAOHUI (CN)
SHEN DONGDONG (CN)
Application Number:
PCT/CN2020/116529
Publication Date:
March 24, 2022
Filing Date:
September 21, 2020
Export Citation:
Assignee:
ANHUI JINHE IND CO LTD (CN)
International Classes:
B01J10/00; C07H13/04; C07H1/00; C07H13/06
Foreign References:
| CN101605804A | 2009-12-16 | |||
| CN101028586A | 2007-09-05 | |||
| CN205235941U | 2016-05-18 | |||
| CN101653711A | 2010-02-24 | |||
| CN209254709U | 2019-08-16 | |||
| CN108558962A | 2018-09-21 | |||
| US4334061A | 1982-06-08 |
Attorney, Agent or Firm:
BEIJING LONGAN LAW FIRM (CN)
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