Table 1. Hydrogenation of resorcinol over Pd catalysts in CH2Cl2 solvent.
Entry | Catalysts | T (°C) | PH2(MPa) | Time (h) | RES Con. (%) | 1,3-CHD Sel. (%) |
---|---|---|---|---|---|---|
1 | Pd/rGO | 20 | 0.1 | 3 | 84.0 | 100 |
2 | Pd/rGO | 25 | 0.5 | 3 | 99.9 | 93.2 |
3 | Pd/rGO | 25 | 1 | 1 | 95.1 | 99.9 |
3 | 99.9 | 94.2 | ||||
4 | Pd/rGO | 30 | 0.5 | 1 | 83 | 90.7 |
2 | 92.1 | 87.1 | ||||
3 | 99.9 | 85.1 | ||||
5 | Pd/rGO | 40 | 0.5 | 0.5 | 70.6 | 86.2 |
1 | 99.9 | 83.5 | ||||
6 | Pd/rGO | 40 | 2 | 0.5 | 99.9 | 54.5 |
7a | Pd/rGO | 25 | 1 | 3 | 99.9 | 93.8 |
8 | Pd/AC | 25 | 1 | 1 | 99.9 | 26.6 |
9 | Pd/SiO2 | 25 | 1 | 3 | 99.9 | 21.2 |
10 | Pd/MWCNT | 25 | 1 | 3 | 99.9 | 52.3 |
Reaction conditions: resorcinol (0.027 mmol), CH2Cl2 solvent (3 ml), 50 mg of Pd catalyst with 3 wt% Pd loading. aThe 5th reuse of Pd/rGO.