Title:
METHOD FOR PRODUCING MONOAMIDE
Document Type and Number:
Japanese Patent JP2003073365
Kind Code:
A
Abstract:
To provide a method suitable for industrialization for producing a monoamide useful as a chelating agent in high yield.
This method for producing an acid monoanhydride comprises a step for forming the acid monoanhydride of a polybasic carboxylic acid by reacting the polybasic carboxylic acid having at least four carboxy groups with an acid dianhydride of the acid in an organic solvent under an absolute condition. The method for producing the monoamide comprises the step for forming the acid monoanhydride of the polybasic carboxylic acid, and a step for forming the monoamide of the polybasic carboxylic acid by reacting the formed acid monoanhydride with amines (except a tertiary amine) in the organic solvent under the absolute condition.
Inventors:
KIRIHARA SHINJI
UEMORI SATORU
YASUMOTO MITSUYOSHI
IKEBE TSUGIO
UEMORI SATORU
YASUMOTO MITSUYOSHI
IKEBE TSUGIO
Application Number:
JP2001261472A
Publication Date:
March 12, 2003
Filing Date:
August 30, 2001
Export Citation:
Assignee:
MITSUBISHI PHARMA CORP
International Classes:
C07D265/32; C07C231/02; C07C237/04; C07D309/32; C07F5/00; (IPC1-7): C07D265/32; C07C231/02; C07C237/04; C07D309/32; C07F5/00