| Entry | Cat. | Solvent | t | Temp(℃) | Yieldb/% |
| 1 | None | Water | 8 h | 100 | - |
| 2 | Cu-MOF/FeOOH | Water | 8 h | 100 | 93 |
| 3 | CuSO4 | Water | 8 h | 100 | - |
| 4 | FeOOH | Water | 8 h | 100 | 11 |
| 5 | Cu-MOF/FeOOH | Water | 6 h | 100 | 92 |
| 6 | Cu-MOF/FeOOH | Water | 3 h | 100 | 92 |
| 7 | Cu-MOF/FeOOH | Water | 1 h | 100 | 92 |
| 8 | Cu-MOF/FeOOH | Water | 30 min | 100 | 91 |
| 9 | Cu-MOF/FeOOH | Water | 10 min | 100 | 91 |
| 10 | Cu-MOF/FeOOH | Water | 10 min | 80/r.t. | 32/- |
| 11 | Cu-MOF/FeOOH | Water | 10 min | 100 | 92/74c |