Title:
METHOD FOR PREPARING N-SUBSTITUTED MALEIMIDE USING PHOTOCATALYST
Document Type and Number:
WIPO Patent Application WO/2019/022426
Kind Code:
A1
Abstract:
The present invention relates to a method for preparing N-substituted maleimide and, more particularly, to a method for preparing N-substituted maleimide, comprising the steps of: a) reacting maleic anhydride with a primary amine in the presence of an organic solvent to prepare N-substituted maleamic acid; and b) reacting the N-substituted maleamic acid prepared in step a) with an acid catalyst, a base catalyst, and a photocatalyst to produce N-substituted maleimide. The method for preparing N-substituted maleimide according to the present invention can greatly improve the purity and yield and is simple in overall processes and useful industrially, thus finding applications in mass production and various industrial fields.
Inventors:
PARK MIN KYU (KR)
KIM HYEON MO (KR)
KIM JONG CHEON (KR)
KIM HYEON MO (KR)
KIM JONG CHEON (KR)
Application Number:
PCT/KR2018/008064
Publication Date:
January 31, 2019
Filing Date:
July 17, 2018
Export Citation:
Assignee:
MONOLITH CO LTD (KR)
International Classes:
C07D207/444; B01J21/06; B01J27/04; B01J31/02; B01J35/00; B01J35/02; C07D207/452
Foreign References:
| JPS6160647A | 1986-03-28 | |||
| US8487147B2 | 2013-07-16 | |||
| JPS60100554A | 1985-06-04 | |||
| US4623734A | 1986-11-18 |
Other References:
DESHPANDE, S. R. ET AL : "A facile synthesis of N-substituted maleimides", INDIAN JOURNAL OF CHEMISTRY, vol. 49B, no. 4, 1 April 2010 (2010-04-01), pages 487 - 488, XP055691237
Attorney, Agent or Firm:
KIM, Sung Ho et al. (KR)
Download PDF: