Reaction conditions: 17 mg of catalyst, 0.33 mmol of benzyl alcohol, 0.2 mmol of Cs2CO3, 330 μl of toluene, O2, 100°C, 2 hours for entries 2 to 7 and 12 hours for entries 1 and 8 to 16, Conversions are an average of at least three runs. n.d., not detected.
| Entry | Catalyst | Conversion (%) | Selectivity (%)* |
| 1 | CTF-HUST-1 | 5 | >99 |
| 2 | CTF-1-300 | 35 | >99 |
| 3 | CTF-1-400 | 64 | >99 |
| 4 | CTF-1-450 | 69 | >99 |
| 5 | CTF-1-500 | 74 | >99 |
| 6 | CTF-1-550 | 87 | >99 |
| 7 | CTF-1-600 | 97 | >99 |
| 8 | No catalyst | <1 | n.d. |
| 9 | CTF-1-400 | 99 | >99 |
| 10† | CTF-1-400 | 3 | >99 |
| 11‡ | CTF-1-400 | 11 | >99 |
| 12§ | CTF-1-400 | 99 | >99 |
| 13|| | CTF-1-400 | 99 | >99 |
| 14¶ | CTF-1-400 | 99 | >99 |
| 15# | CTF-1-400 | 26 | >99 |
| 16** | CTF-1-400 | 7 | >99 |
*Selectivity toward benzaldehyde.
†Under Ar atmosphere.
‡With p-benzoquinone as the superoxide (•O2−) scavenger.
§With tert-butyl alcohol as the •OH scavenger.
||With NaN3 as the 1O2 scavenger.
¶With 1,3-diphenylisobenzofuran as the 1O2 scavenger.
#With ammonium oxalate.
**The reaction was done at room temperature.