Title:
METHOD FOR PRODUCING 2-CHLOROMETHYLPHENYL ACETIC ACID DERIVATIVES
Document Type and Number:
Japanese Patent JP2010031027
Kind Code:
A
Abstract:
To provide a method for producing 2-methoxyimino-2-[2-(chloromethyl)phenyl]acetic acid derivatives.
The invention relates to a method for producing 2-chloromethylphenyl acetic acid derivatives of formula I, in which X represents 1-4C alkoxy or methylamino, by cleaving the ether bonds in compounds of formula II, in which R represents 1-4C alkyl, 1-4C alkoxy, 1-2C alkyl halide, 1-4C alkylcarbonyl, 1-4C alkylcarbonyloxy, halogen, nitro or cyano. The inventive method is characterized in that the transformation takes place in the presence of hydrogen chloride and an inert solvent, and in that a catalyst selected from the group consisting of iron, indium and halogenides, oxides or triflates thereof is added to the reaction mixture.
Inventors:
MAYER GUIDO
CULLMANN OLIVER
WOLF BERND
KEIL MICHAEL
CULLMANN OLIVER
WOLF BERND
KEIL MICHAEL
Application Number:
JP2009224405A
Publication Date:
February 12, 2010
Filing Date:
September 29, 2009
Export Citation:
Assignee:
BASF SE
International Classes:
C07C249/12; C07B61/00; C07C251/48; C07C251/38
Domestic Patent References:
| JP2000505783A | 2000-05-16 | |||
| JPH04288045A | 1992-10-13 | |||
| JP2000506848A | 2000-06-06 | |||
| JP4430943B2 | 2010-03-10 | |||
| JP2000505783A | 2000-05-16 | |||
| JPH04288045A | 1992-10-13 | |||
| JP2000506848A | 2000-06-06 |
Attorney, Agent or Firm:
Yusuke Hiraki
Ishii Teiji
Satoshi Fujita
Eiichi Arai
Ai Fujii
Ishii Teiji
Satoshi Fujita
Eiichi Arai
Ai Fujii