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1. (WO2018124453) METHOD FOR PRODUCING N-SUBSTITUTED MALEIMIDE USING SOLID ACID CATALYST

Pub. No.:    WO/2018/124453    International Application No.:    PCT/KR2017/012499
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Tue Nov 07 00:59:59 CET 2017
IPC: C07D 207/448
C07D 207/452
B01J 31/12
Applicants: LG CHEM, LTD.
주식회사 엘지화학
Inventors: CHEON, Joo Young
천주영
CHOI, Jun Seon
최준선
KIM, Ji Yeon
김지연
JOE, Wang Rae
조왕래
KIM, Kyung Soo
김경수
YEOM, Eung Seob
염응섭
LEE, Won Kyun
이원균
Title: METHOD FOR PRODUCING N-SUBSTITUTED MALEIMIDE USING SOLID ACID CATALYST
Abstract:
The present invention relates to a method for producing an N-substituted maleimide using a heterogeneous solid acid catalyst. Specifically, the purpose of the present invention is to provide a method for producing an N-substituted maleimide, wherein, by using a zirconium(IV) hydrogenphosphate solid acid catalyst as a catalyst of an N-substituted maleimide synthesis reaction, the loss of the catalyst is minimized, the separation and recovery processes of the catalyst are simplified, the catalyst can be completely regenerated through washing or firing when the activity of the separated and recovered catalyst is reduced, there is no restriction on the choice of washing solvent, and the yield of N-substituted maleimide synthesis is high.