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.

Date of Patent:
Jul. 12, 2016

Filed:

Sep. 26, 2013
Applicant:

Roquette Freres, Lestrem, FR;

Inventors:

Mathias Ibert, La Chapelle d'Armentieres, FR;

Flora Chambon, Marc en Baroeul, FR;

Laurent Dambrine, Sains en Gohelle, FR;

Assignee:

ROQUETTE FRERES, Lestrem, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 307/68 (2006.01); C07D 307/46 (2006.01);
U.S. Cl.
CPC ...
C07D 307/68 (2013.01); C07D 307/46 (2013.01);
Abstract

A method for synthesizing 2,5-furandicarboxylic acid (FDCA) from furan-2,5-dialdehyde (DFF). The method is industrially applicable due to the simplicity and availability of the reagents used, and due to the experimental conditions on which the method is based: the method requires low temperatures and enables a reaction under atmospheric pressure, the reaction times being relatively short. Furthermore, the method does not lead to the formation of salts that need to be treated downstream from the method, and the catalytic ratio relative to the initial product is particularly low.


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