Ester compound
US-2024025838-A1 · Jan 25, 2024 · US
Methods for preparing 2,5-furandicarboxylic acid
US9260403B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9260403-B2 |
| Application number | US-201414229388-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 28, 2014 |
| Priority date | Sep 29, 2011 |
| Publication date | Feb 16, 2016 |
| Grant date | Feb 16, 2016 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
Provided are methods of producing 2,5-furandicarboxylic acid (FDCA) from renewable sources such as seaweed, alginate, oligoalginate, pectin, oligopectin, polygalacturonate, galacturonate, and/or oligogalacturonate. The sugars in the renewable sources can be converted into one or more intermediates such as 4-deoxy-L-erythro-5-hexoseulose uronate (DEHU), 4-deoxy-L-threo-5-hexosulose uronate (DTHU), 5-hydroxymethyl furfural (HMF), 2,5-dihydroxymethyl furan (DHMF), and 5-formyl-2-furancarboxylic acid (FFA), which can be converted into FDCA by dehydration and cyclization to produce 5-formyl-2-furancarboxylic acid (FFA), followed by oxidation to produce FDCA. DEHU or DTHU may also be converted into FDCA by oxidation to produce 2,3-dihydroxy-5-oxohexanedioic acid (DOHA), which then undergoes dehydration and cyclization to produce FDCA.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of producing 2,5-furandicarboxylic acid (FDCA), comprising: a) providing a compound of Formula (I), b) dehydrating and cyclizing the compound of formula I into 5-formyl-2-furancarboxylic acid (FFA); and c) oxidizing the FFA to produce FDCA. 2. The method of claim 1 , wherein the compound of Formula (I) is 4-deoxy-…
Assignees
Inventors
Classifications
- C07D307/68Primary
Chemistry & Metallurgy · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9260403B2 cover?
- Provided are methods of producing 2,5-furandicarboxylic acid (FDCA) from renewable sources such as seaweed, alginate, oligoalginate, pectin, oligopectin, polygalacturonate, galacturonate, and/or oligogalacturonate. The sugars in the renewable sources can be converted into one or more intermediates such as 4-deoxy-L-erythro-5-hexoseulose uronate (DEHU), 4-deoxy-L-threo-5-hexosulose uronate (DTHU…
- Who is the assignee on this patent?
- Yoshikuni Yasuo, Cooper Susan R, Wargacki Adam J, and 6 more
- What technology area does this patent fall under?
- Primary CPC classification C07D307/68. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Feb 16 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).