Entry | Catalyst | Time (min) | Yield a |
---|---|---|---|
1 | No catalyst + No Heating + No US | 180 | - |
2 | No catalyst + Heating (50°C) | 180 | - |
3 | Catalyst (20 mol%) + Heating (50°C) | 60 | <55 |
4 | Catalyst (20 mol%) + Heating (80°C) | 60 | 68 |
5 | No catalyst + Heating (50°C) + US | 120 | <10 |
6 | Catalyst (20 mol%) + No Heating + US | 50 | 74 |
7 | Catalyst (50 mol%) + No Heating + US | 50 | 72 |
8 | Catalyst (20 mol%) + Heating (50°C) + US | 40 | 80 |
9 | Catalyst (20 mol%) + Heating (80°C) + US | 20 | 95 |
10 | Catalyst (20 mol%) + Heating (100°C) + US | 30 | 92 |