Table 1 Cycloaddition of CO2 and ECH catalyzed by various catalysts
Entry | Catalyst | Solubility | Yielda (%) | Selb (%) |
---|---|---|---|---|
1 | No catalyst | Homogeneous | – | – |
2 | DVB-HTA | Heterogeneous | 90 | 98 |
3 | DVB-BTA | Heterogeneous | 84 | 92 |
4 | HTA | Homogeneous | 84 | 97 |
5 | BTA | Homogeneous | 77 | 95 |