Trifunctional Metal–Organic Framework Catalyst for CO<sub>2</sub> Conversion into Cyclic Carbonates
Shuo Liu, Ming‐Liang Gao, Yue Zhang, Lin Liu, Zheng‐Bo Han
Abstract
Herein, we reported a facile strategy for the preparation of trifunctional ionic metal–organic frameworks (MOFs) incorporating imidazolium cation functionalities. This strategy exploits the Debus–Radziszewski reaction to create the cationic imidazole ring by postsynthetic modification, meanwhile introducing exchangeable counteranions. On the basis of this strategy, MIL-101-IMOH-Br– has been synthesized, which combines Lewis acidic sites, Brønsted acidic sites, and nucleophilic centers to achieve catalysis for the carbon dioxide–epoxide cycloaddition into cyclocarbonate without any cocatalyst and solvent.
Topics & Concepts
ChemistryCatalysisEpoxideNucleophileCationic polymerizationCycloadditionImidazoleIonic liquidSynergistic catalysisLewis acids and basesCarbonylationSolventMetal-organic frameworkIonic bondingMetalCombinatorial chemistryOrganic chemistryPolymer chemistryCarbon monoxideAdsorptionIonCarbon dioxide utilization in catalysisMetal-Organic Frameworks: Synthesis and ApplicationsCO2 Reduction Techniques and Catalysts