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:
Jun. 11, 2019
Filed:
Jun. 20, 2016
Applicant:
Haldor Topsøe A/s, Kgs. Lyngby, DK;
Inventors:
Esben Taarning, Frederiksberg, DK;
Irantzu Sadaba Zubiri, Frederiksberg, DK;
Sebastian Meier, Værløse, DK;
Assignee:
HALDOR TOPSØE A/S, Kgs. Lyngby, DK;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 59/42 (2006.01); C07C 67/39 (2006.01); C07C 51/16 (2006.01); B01J 29/70 (2006.01); C07C 69/732 (2006.01);
U.S. Cl.
CPC ...
C07C 59/42 (2013.01); B01J 29/7049 (2013.01); C07C 51/16 (2013.01); C07C 67/39 (2013.01); C07C 69/732 (2013.01); C07C 2529/70 (2013.01);
Abstract
Preparation of 2,5,6-trihydroxy-3-hexenoic acid and 2,5-dihydroxy-3-pentenoic acid and esters thereof from C6 and C5 sugars in the presence of a Lewis Acid material, wherein the yield of the 2,5,6-trihydroxy-3-hexenoic acid or 2,5-dihydroxy-3-pentenoic acid or esters thereof exceeds 15%.