Title:
4-ニトロ-オキシ-メチル-安息香酸を調製する方法
Document Type and Number:
Japanese Patent JP2013510827
Kind Code:
A
Abstract:
This invention relates to a new process for preparing 4-nitro-oxy-methyl-benzoic acid, comprising the following steps: a) reaction of 4-chloromethyl-benzoic acid with silver nitrate and in the presence of an acid as a catalyst in acetonitrile at reflux temperature, followed by cooling and adding of a polar aprotic solvent; b) separation of the silver salts by filtration, followed by washout with a polar aprotic solvent; c) precipitation of the 4-nitro-oxy-methyl-benzoic acid with water from the filtrate obtained in step b); and d) drying of the 4-nitro-oxy-methyl-benzoic acid.
Inventors:
Angrada, Lewis
Palomar, Alberto
Sobral, Lewis
Palomar, Alberto
Sobral, Lewis
Application Number:
JP2012538353A
Publication Date:
March 28, 2013
Filing Date:
November 15, 2010
Export Citation:
Assignee:
Fuerrel International, Sociedad Anonima
Nicox Society Anonymous
Nicox Society Anonymous
International Classes:
C07C201/02; B01J27/02; C07C203/04; C07B61/00
Attorney, Agent or Firm:
Asamura patent office
Hideto Asamura
Hajime Asamura
Yukihiro Ikeda
Naganuma Akio
Hideto Asamura
Hajime Asamura
Yukihiro Ikeda
Naganuma Akio