The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 12, 2021
Filed:
Apr. 24, 2019
Zhejiang Nhu Company Ltd., Zhejiang, CN;
Shandong Nhu Fine Chemical Science and Technology Company Ltd., Shandong, CN;
Yougui Zhou, Shandong, CN;
Jiang Cai, Zhejiang, CN;
Kaifeng Ma, Zhejiang, CN;
Yugang Wang, Shandong, CN;
Xiaoqiao Wei, Zhejiang, CN;
Yunhan Yang, Zhejiang, CN;
Zhejiang Nhu Company Ltd., Zhejiang, CN;
Shandong Nhu Fine Chemical Science and Technology Company Ltd., Shandong, CN;
Abstract
A method for synthesizing sucrose-6-ester includes: (a) in the presence of a polar aprotic solvent, contacting an organic phosphine compound represented by formula I with sucrose and an organic tin compound; (b) removing water to obtain a reaction liquid containing a tin-sucrose adduct; and (c) contacting the reaction liquid containing the tin-sucrose adduct with an acid anhydride compound to prepare a sucrose-6-ester. In formula I, R, R, and Reach are a linear or branched alkyl having 1 to 20 carbon atoms, a cycloalkyl having 3 to 10 carbon atoms, or an aryl having 6 to 10 carbon atoms; moreover, the R, R, and Rare identical groups, partially identical groups, or different groups from each other. According to the method, the reaction conversion rate and selectivity are greatly improved; moreover, it is easy to realize industrial application.