METHOD FOR PRODUCING p-HYDROXYBENZOIC ACID COMPOUND OR SALT THEREOF

Title:

METHOD FOR PRODUCING p-HYDROXYBENZOIC ACID COMPOUND OR SALT THEREOF

Document Type and Number:

Japanese Patent JP2004346009

Kind Code:

A

Abstract:

To provide a method for producing a p-hydroxybenzoic acid compound or a salt thereof.

The method for producing the p-hydroxybenzoic acid compound of formula(2)( wherein, R1 to R4 are each the same as mentioned below ) comprises carrying out a reaction between an ammonium salt of the corresponding phenolic compound of formula(1)( wherein, R1 to R4 are each H or a 1-10C alkyl ) and carbon dioxide. By this method, the objective p-hydroxybenzoic acid compound can be produced efficiently at relatively low temperatures from the corresponding phenolic compound.

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Inventors:

MATSUI YOSHIHISA
KOSUGI YOSHIO

Application Number:

JP2003144744A

Publication Date:

December 09, 2004

Filing Date:

May 22, 2003

Export Citation:

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Assignee:

SUMITOMO CHEMICAL CO

International Classes:

C07C51/15; C07B61/00; C07C65/03; (IPC1-7): C07C51/15; C07C65/03

Attorney, Agent or Firm:

Takashi Kuboyama
Toru Nakayama
Masayuki Enomoto

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