AR074164A1 - PROCESSES FOR PREPARATION OF ESTERS - Google Patents
PROCESSES FOR PREPARATION OF ESTERSInfo
- Publication number
- AR074164A1 AR074164A1 ARP090102478A AR074164A1 AR 074164 A1 AR074164 A1 AR 074164A1 AR P090102478 A ARP090102478 A AR P090102478A AR 074164 A1 AR074164 A1 AR 074164A1
- Authority
- AR
- Argentina
- Prior art keywords
- catalysts
- preparation
- hydrogen
- formula
- catalysts containing
- Prior art date
Links
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
La presente se refiere a un proceso para la preparacion de insecticidas piretroides sintéticos. Reivindicacion 1: Un proceso para la preparacion de compuestos de la formula (1), en donde R1 es hidrogeno, alquilo, haloalquilo o halogeno; R2 es hidrogeno, alquilo, haloalquilo o halogeno; R3 es hidrogeno, ciano o alquinilo; Ar es un grupo arilo o heteroarilo opcionalmente sustituido, que comprende hacer reaccionar un ácido carboxílico de la formula (2) con un alcohol de la formula (3) en presencia de un catalizador seleccionado de catalizadores que contienen circonio, catalizadores que contienen hafnio, catalizadores que contienen hierro, catalizadores que contienen cobalto, catalizadores que contienen estano, catalizadores que contienen titanio, catalizadores de sales de amonio y catalizadores que contienen ácido boronico.This refers to a process for the preparation of synthetic pyrethroid insecticides. Claim 1: A process for the preparation of compounds of the formula (1), wherein R 1 is hydrogen, alkyl, haloalkyl or halogen; R2 is hydrogen, alkyl, haloalkyl or halogen; R3 is hydrogen, cyano or alkynyl; Ar is an optionally substituted aryl or heteroaryl group, which comprises reacting a carboxylic acid of the formula (2) with an alcohol of the formula (3) in the presence of a catalyst selected from zirconium-containing catalysts, hafnium-containing catalysts, catalysts containing iron, catalysts containing cobalt, catalysts containing tin, catalysts containing titanium, catalysts for ammonium salts and catalysts containing boronic acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ARP090102478 AR074164A1 (en) | 2009-07-02 | 2009-07-02 | PROCESSES FOR PREPARATION OF ESTERS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ARP090102478 AR074164A1 (en) | 2009-07-02 | 2009-07-02 | PROCESSES FOR PREPARATION OF ESTERS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AR074164A1 true AR074164A1 (en) | 2010-12-29 |
Family
ID=43566878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ARP090102478 AR074164A1 (en) | 2009-07-02 | 2009-07-02 | PROCESSES FOR PREPARATION OF ESTERS |
Country Status (1)
| Country | Link |
|---|---|
| AR (1) | AR074164A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109111373A (en) * | 2018-10-09 | 2019-01-01 | 南通天泽化工有限公司 | A kind of preparation method of Cyhalothrin |
-
2009
- 2009-07-02 AR ARP090102478 patent/AR074164A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109111373A (en) * | 2018-10-09 | 2019-01-01 | 南通天泽化工有限公司 | A kind of preparation method of Cyhalothrin |
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| Date | Code | Title | Description |
|---|---|---|---|
| FB | Suspension of granting procedure |