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|1. (WO2018124453) METHOD FOR PRODUCING N-SUBSTITUTED MALEIMIDE USING SOLID ACID CATALYST|
|Applicants:||LG CHEM, LTD.
|Inventors:||CHEON, Joo Young
CHOI, Jun Seon
KIM, Ji Yeon
JOE, Wang Rae
KIM, Kyung Soo
YEOM, Eung Seob
LEE, Won Kyun
|Title:||METHOD FOR PRODUCING N-SUBSTITUTED MALEIMIDE USING SOLID ACID CATALYST|
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.