MX9709429A - Process for converting 2,4-dichloropyridines into 2-aryloxy-4-chloropyridines. - Google Patents
Process for converting 2,4-dichloropyridines into 2-aryloxy-4-chloropyridines.Info
- Publication number
- MX9709429A MX9709429A MX9709429A MX9709429A MX9709429A MX 9709429 A MX9709429 A MX 9709429A MX 9709429 A MX9709429 A MX 9709429A MX 9709429 A MX9709429 A MX 9709429A MX 9709429 A MX9709429 A MX 9709429A
- Authority
- MX
- Mexico
- Prior art keywords
- compound
- formula
- converting
- dichloropyridines
- chloropyridines
- Prior art date
Links
Landscapes
- Pyridine Compounds (AREA)
Abstract
This invention relates to a process for converting 2,4-dichloropyridines into 2-aryloxy-4-chloropyridines, comprising reacting a compound of formula (I), wherein R1 is (C1-C4)alkyl; R2 is methyl or ethyl; and R3, R4 and R5 are selected, independently, from (C1-C4)alkyl and (C1-C4)alkoxy; or a pharmaceutically acceptable salt thereof; comprising reacting a compound of formula (II), wherein R1 and R2 are defined as above, with a compound of formula (III), wherein R3, R4 and R5 are defined as above, in the presence of a base that is capable of deprotonating the compound of formula (III), optionally in the presence of an organometallic halide or oxide and a suitable solvent, and then optionally converting the resulting compound of formula (I) into a pharmaceutically acceptable salt of such compound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MX9709429A MX9709429A (en) | 1997-12-02 | 1997-12-02 | Process for converting 2,4-dichloropyridines into 2-aryloxy-4-chloropyridines. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MX9709429A MX9709429A (en) | 1997-12-02 | 1997-12-02 | Process for converting 2,4-dichloropyridines into 2-aryloxy-4-chloropyridines. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| MX9709429A true MX9709429A (en) | 1998-07-31 |
Family
ID=39472133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MX9709429A MX9709429A (en) | 1997-12-02 | 1997-12-02 | Process for converting 2,4-dichloropyridines into 2-aryloxy-4-chloropyridines. |
Country Status (1)
| Country | Link |
|---|---|
| MX (1) | MX9709429A (en) |
-
1997
- 1997-12-02 MX MX9709429A patent/MX9709429A/en not_active IP Right Cessation
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG | Grant or registration | ||
| MM | Annulment or lapse due to non-payment of fees |