A heterocyclic ethynyl phthalic anhydride derivative, its synthesis method and application
The synthesis of heterocyclic acetylenic anhydride derivatives via the oxidative coupling reaction of acetylenic anhydride with five-membered heterocyclic compounds solves the problem of high-temperature synthesis of phenylacetylenic anhydride and achieves high-yield and environmentally friendly preparation of polyimide end-capping agents.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- DALIAN NEW SUNSHINE MATERIAL TECH CO LTD
- Filing Date
- 2024-08-19
- Publication Date
- 2026-07-14
AI Technical Summary
Existing methods for synthesizing phenylacetylene phthalic anhydride require high temperatures, have poor processability and low material stability, and are not environmentally friendly with low yields.
Heterocyclic acetylenic anhydride derivatives were synthesized by oxidative coupling reaction of acetylenic phthalic anhydride with five-membered heterocyclic compounds. Palladium and copper catalysts, organic bases and oxygen atmosphere were used. The reaction temperature was 40-80℃ and the reaction time was 8-24 hours. The post-processing was simple.
A method for synthesizing heterocyclic ethynyl phthalic anhydride derivatives at lower temperatures was achieved with high yield, simple operation, and atom economy. Water was produced as a byproduct, which reduced the crosslinking temperature and production cost of the material.
Smart Images
Figure CN119039282B_ABST