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. 09, 2012
Filed:
Dec. 19, 2008
Applicants:
Xinmin Chen, Shanghai, CN;
Yanbing Bai, Hangzhou, CN;
Jianxin Peng, Shanghai, CN;
Inventors:
Assignees:
Zhejiang Hangzhou Xinfu Pharmaceutical, Co., Ltd., Hangzhou, CN;
Shanghai Tongchen Biotech, Co., Ltd., Shanghai, CN;
Primary Examiner:
Int. Cl.
CPC ...
C13K 5/00 (2006.01); C13K 7/00 (2006.01); C07H 1/00 (2006.01); C07H 3/00 (2006.01); C08B 37/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention discloses a process for synthesizing sucralose, which comprises reacting sucrose with acetic anhydride in the solvent of a N-amide compound in the presence of an organic complex alkali metal salt catalyst to produce sucrose-6-acetate, and then chlorinating and deacetylating the sucrose-6-acetate to give sucralose. The present invention also discloses a process for purifying sucralose, which comprises purifying crude sucralose with one or more organic solvents to obtain purified sucralose.