Process for preparing [(3-hydroxypyridine-2-carbonyl)amino]alkanoic acids, esters and amides
US-2015361043-A1 · Dec 17, 2015 · US
Process for the preparation of 4-amino-5-fluoro-3-chloro-6-(substituted)picolinates
US9518019B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9518019-B2 |
| Application number | US-201615040577-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 10, 2016 |
| Priority date | Dec 13, 2012 |
| Publication date | Dec 13, 2016 |
| Grant date | Dec 13, 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.
4-Amino-5-fluoro-3-chloro-6-(substituted)picolinates are prepared from trifluoroacetic acid, p-methoxyaniline, a C 1 -C 4 alkyl propiolate and a substituted methylene amine by a series of steps.
First claim
Opening claim text (preview).
What is claimed is: 1. A compound of Formula E wherein R 1 represents C 1 -C 4 alkyl, cyclopropyl, C 2 -C 4 alkenyl or phenyl substituted with from 1 to 4 substituents independently selected from halogen, C 1 -C 4 alkyl, C 1 -C 4 haloalkyl, C 1 -C 4 alkoxy or C 1 -C 4 haloalkoxy, and R 2 represents C 1 -C 4 alkyl. 2. A compound of Formula G wherein R 1 represents C 1 -C 4 alkyl, cyclopropyl, C 2 -C 4 alkenyl or phenyl substituted with from 1 to 4 substituents independently selected from halogen, C 1 -C 4 alkyl, C 1 -C 4 haloalkyl, C 1 -C 4 alkoxy or C 1 -C 4 haloalkoxy, and R 2 represents C 1 -C 4 alkyl.
Assignees
Inventors
Classifications
Processes of preparation · CPC title
being acyclic · CPC title
- C07D213/79Primary
Acids; Esters · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9518019B2 cover?
- 4-Amino-5-fluoro-3-chloro-6-(substituted)picolinates are prepared from trifluoroacetic acid, p-methoxyaniline, a C 1 -C 4 alkyl propiolate and a substituted methylene amine by a series of steps.
- Who is the assignee on this patent?
- Dow Agrosciences Llc
- What technology area does this patent fall under?
- Primary CPC classification C07D213/79. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Dec 13 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).