Processes for the preparation of pesticidal compounds
US-9108946-B2 · Aug 18, 2015 · US
Processes for the preparation of pesticidal compounds
US9540342B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9540342-B2 |
| Application number | US-201614989295-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 6, 2016 |
| Priority date | Oct 17, 2013 |
| Publication date | Jan 10, 2017 |
| Grant date | Jan 10, 2017 |
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- Title
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- Abstract
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Abstract
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The present application provides processes for making pesticidal compounds and compounds useful both as pesticides and in the making of pesticidal compounds.
First claim
Opening claim text (preview).
What is claimed is: 1. A process for the preparation of N-(3-chloro-1-(pyridin-3-yl)-1H-pyrazol-4-yl)acetamide (1c) which comprises reacting N-(3-chloro-1H-pyrazol-4-yl)acetamide (1b) with a suitable halopyridine in the presence of a copper salt, an amine, and a base. 2. The process of claim 1 , wherein the halopyridine is 3-bromopyridine or 3-iodopyridine. 3. The process of claim 2 , wherein the halopyridine is 3-bromopyridine. 4. The process of claim 2 , wherein the halopyridine is 3-iodopyridine. 5. The process of claim 1 , wherein the base is an inorganic base. 6. The process of claim 5 , wherein the inorganic base is K 3 PO 4 . 7. The process of claim 1 , wherein the anime N,N′-dimethylethane-1,2-diamine. 8. The process of claim 1 , wherein the copper salt is selected from the group consisting of copper(I) chloride (CuCl), copper(II) chloride (CuCl 2 ) and copper(I) iodide (CuI). 9. The process of claim 8 , wherein the copper salt is CuCl. 10. The process of claim 8 , wherein the copper salt is CuCl 2 . 11. The process of claim 8 , wherein the copper salt is CuI. 12. The process of claim 1 , wherein the step of reacting is carried out in the presence of a polar solvent. 13. The process of claim 12 , wherein the polar solvent is acetonitrile, dioxane or DMF.
Assignees
Inventors
Classifications
- C07D401/04Primary
directly linked by a ring-member-to-ring-member bond · CPC title
- C07D231/38Primary
Nitrogen atoms (nitro radicals C07D231/16) · CPC title
Acylated on said nitrogen atom · CPC title
- A01N43/56Primary
1,2-Diazoles; Hydrogenated 1,2-diazoles · CPC title
the carbon atom having a double or triple bond to nitrogen, e.g. cyanates, cyanamides · CPC title
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Frequently asked questions
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- What does patent US9540342B2 cover?
- The present application provides processes for making pesticidal compounds and compounds useful both as pesticides and in the making of pesticidal compounds.
- Who is the assignee on this patent?
- Dow Agrosciences Llc
- What technology area does this patent fall under?
- Primary CPC classification C07D401/04. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jan 10 2017 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 12 related publications on this page (citations in our corpus or others sharing the same primary CPC).