Table 5. CF Synthesis of Carbonate 1a from EPI and CO2a.
| entry | catalyst | T (°C) | EPIb (mol L–1) | Fc (mL min–1) | conv. (%) | sel. 1a (%) | productivity 1a (mmol g–1 h–1) |
|---|---|---|---|---|---|---|---|
| 1 | C4-500 | 200 | 0.3 | 0.01 | >99 | 95 | 0.4 |
| 2 | C4-500 | 175 | 0.3 | 0.01 | >99 | 97 | 0.4 |
| 3 | C4-500 | 150 | 0.3 | 0.01 | >99 | 99 | 0.5 |
| 4 | C4-500 | 200 | 0.3 | 0.1 | 48 | 87 | 1.9 |
| 5 | C4-500 | 150 | neat | 0.01 | 75 | 95 | 10.5 |
| 6 | C5-500 | 150 | 0.3 | 0.01 | >99 | 99 | 0.5 |
| 7 | C5-500 | 150 | neat | 0.01 | >99 | 99 | 15.0 |
CO2 flow rate was 1 mL min–1 and the pressure was 100 bar in all cases.
EPI fed in an acetonitrile solution (0.3 M) or as such (neat).
F = flow rate of EPI (neat or in solution). Conversion of EPI and selectivity toward the carbonate 1a were determined by GC-FID analyses.