Catalytic results of Co/ZrO2 for hydrogenation of different substratesa.
| Entry | T (°C) | Substrate | Time (h) | Conv. (%) | Selectivity (%) | |||
|---|---|---|---|---|---|---|---|---|
| GVL | 1,4-PDO | MTHF | PAO | |||||
| 1 | 230 | 3.4 mmol EL | 8 | 100 | 2.0 | 0.6 | 76.7 | 20.6 |
| 2 | 190 | 5 mmol GVL | 5 | 23.9 | — | 79.6 | 17.8 | 2.7 |
| 3 | 230 | 1 mmol GVL | 2 | 97.0 | — | 1.9 | 74.4 | 23.7 |
| 4 | 230 | 1 mmol 1,4-PDO | 2 | 99.3 | 0.2 | — | 75.1 | 24.7 |
| 5 | 230 | 1 mmol 2-PAO | 8 | 4.1 | n.d. | n.d. | 91.5 | 8.5b |
| 6 | 230 | 1 mmol 1-PAO | 8 | 8.2 | n.d. | n.d. | 91.3 | 8.7c |
| 7 | 230 | 1 mmol 2-MTHF | 3 | 4.0 | n.d. | n.d. | — | 100d |
a
Reaction conditions: 15 mL 1,4-dioxane, 4 MPa H2 and 0.1 g Co/ZrO2.
b
1-PAO selectivity.
c
2-PAO selectivity.
d
44.2% 1-PAO and 55.8% 2-PAO, respectively.