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:
Mar. 17, 2015
Filed:
Jun. 18, 2010
Applicants:
James Edwin Wiley, Jr., Moraga, CA (US);
Mohamad R. Jaber, Rancho Cucamonga, CA (US);
Inventors:
James Edwin Wiley, Jr., Moraga, CA (US);
Mohamad R. Jaber, Rancho Cucamonga, CA (US);
Assignee:
Tate & Lyle Technology Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07H 5/02 (2006.01); C07C 233/03 (2006.01); C07C 231/24 (2006.01); C07H 1/06 (2006.01);
U.S. Cl.
CPC ...
C07C 231/24 (2013.01); C07H 1/06 (2013.01); C07H 5/02 (2013.01);
Abstract
A chlorinating agent such as a chloroiminium species is used to remove or neutralize tertiary acetamide present as a contaminant in a tertiary formamide solvent. Tertiary formamide solvent purified or treated in this manner can be used as a reaction vehicle for the chlorination of sucrose-6-acylates, thereby improving the yields of the desired sucralose-6-acylate (an intermediate in the production of sucralose).