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. 12, 2019
Filed:
Dec. 15, 2014
Tate & Lyle Technology Limited, London, GB;
Thomas Eilers, Cary, IL (US);
Halil Aktas, NB Zaandam, NL;
Tate & Lyle Technology Limited, London, GB;
Abstract
There is provided a method for the chlorination of a sucrose-6-acylate to produce a 4,1',6′-trichloro-4,1′,6′-trideoxy-galactosucrose-6-acylate, wherein said method comprises the following steps (i) to (v): (i) providing a first component comprising sucrose-6-acylate; (ii) providing a second component comprising a chlorinating agent; (iii) combining said first component and said second component to afford a mixture; (iv) heating said mixture for a heating period in order to provide chlorination of sucrose-6-acylate at the 4, 1′ and 6′ positions thereof; (v) quenching said mixture to produce a 4,1′,6′-trichloro-4,1′,6′-trideoxy-galactosucrose-6-acylate; wherein at least one of said first component and said second component comprises a reaction vehicle, and said reaction vehicle comprises a tertiary amide; and wherein said mixture comprises a cosolvent during a least a portion of the heating period of step (iv), wherein said cosolvent comprises perfluorooctane.