1 引言
2 结果与讨论
2.1 催化性能研究
图1 金属盐种类对TBHP催化分解的影响aFigure 1 Effect of metal salts on the catalytic decomposition of TBHP a Reaction conditions: Catalytic decomposition of TBHP by different metal salts under dark (a) and light (b). 0.8 mmol of TBHP, 0.08 mmol of metal salt, ambient temperature, 1 mL of ethanol, irradiated by a LED lamp (465 nm and 3 W) |
图2 溶剂种类对TBHP催化分解的影响aFigure 2 Effect of solvents on the catalytic decomposition of TBHP a Reaction conditions: Catalytic decomposition of TBHP by different solvents under dark and light conditions, 0.8 mmol of TBHP, 0.08 mmol of FeCl2•4H2O, ambient temperature, 1 mL of solvent, LED lamp (465 nm and 3 W), reaction for 30 h |
2.2 机理研究
表1 不同抑制剂对催化分解TBHP的影响aTable 1 Results comparison with the addition of different inhibitors on the catalytic decomposition of TBHP |
| Entry | Radical inhibitors | Conditions | Types of inhibition | Conversion of TBHP/% |
|---|---|---|---|---|
| 1 | None | hv | — | 96.8 |
| 2 | TBA | hv | •OH | 91.3 |
| 3 | BA | hv | Cl• | 87.9 |
| 4 | BHT | hv | RO•/ROO• | 38.5 |
| 5 | None | dark | — | 31.2 |
| 6 | TBA | dark | •OH | 29.7 |
| 7 | BA | dark | Cl• | 27.3 |
| 8 | BHT | dark | RO•/ROO• | 10.1 |
a Reaction conditions: 0.8 mmol of TBHP, 0.08 mmol of FeCl2•4H2O, 0.16 mmol inhibitor, ambient temperature, 1 mL of ethanol, LED lamp (400 nm and 3 W), reaction for 5 h. |
2.3 底物拓展
表2 FeCl2•4H2O/EtOH催化分解多种ROOHaTable 2 Catalytical decomposition of various ROOH with FeCl2•4H2O/EtOH |
| Entry | Catalyst | Temperature/℃ | Substrate | Conversion/% | Selectivity of alcohol or ketone/% |
|---|---|---|---|---|---|
| 1a | ![]() CHHP | 82.3 | ![]() CyOH/85.2 | ||
| 2 | FeCl2•4H2O | Ambient temperature | ![]() CHP | 96.2 | ![]() CA/94.5 |
| 3 | ![]() PEHP | 95.5 | ![]() AcPO/88.2 | ||
| 4 | ![]() TBHP | 96.8 | ![]() TBA/97.1 | ||
| 5b | α-Co(OH)2 | 60 | ![]() CHHP | 89.7 | ![]() CyOH/61 |
| 6c | [Bmim]Br | 70 | ![]() CHP | 33.9 | ![]() CA/100 |
| 7d | Manganese oxide | 65 | ![]() TBHP | 96 | ![]() TBA/100 |













