Title:
METHOD FOR PRODUCING N-SUBSTITUTED MALEIMIDES
Document Type and Number:
Japanese Patent JP2009126866
Kind Code:
A
Abstract:
To provide a method for synthesizing and producing N-substituted maleimides.
The present invention provides the method for producing and synthesizing an N-substituted maleimides in an organic solvent that is azeotropic with water, and in the presence of a supported catalyst where an organic phosphonic acid having a melting point higher than 150C and insoluble with the N-substituted maleimide is carried on a solid carrier, a primary amine and maleic anhydride are administered to carried out the cyclodehydration at 100 to 140C. According to this invention, a method for producing the N-substituted maleimides of high purity in high yield is provided.
Inventors:
O HYUN TAEK
LEE HYUNG SUB
KIM JONG BEOM
SEO HYE WON
LEE HYUNG SUB
KIM JONG BEOM
SEO HYE WON
Application Number:
JP2008301600A
Publication Date:
June 11, 2009
Filing Date:
November 26, 2008
Export Citation:
Assignee:
LG CHEMICAL LTD
International Classes:
C07D207/448; B01J31/02; B01J35/10; C07B61/00
Domestic Patent References:
| JPS643167A | 1989-01-06 | |||
| JPS63122666A | 1988-05-26 |
Attorney, Agent or Firm:
Sumio Tanai
Shinya Mitsuhiro
Shinya Mitsuhiro
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