Research Article
Cycloaddition Reaction of Carbon Dioxide to Epoxides Catalyzed by Polymer-Supported Quaternary Phosphonium Salts
Figure 8
Recycling experiments for polymer-supported quaternary phosphonium salts. Reaction conditions: ECH 3 mL, PS-QPS-1 0.08 g, 5 MPa CO2, 150°C, and 6 h.
