Table 3.
Optimization of catalytic reaction conditions for the conversion of 1,2‐butylene oxide (1 a).
|
Entry |
T [°C] |
p [MPa] |
t [h] |
Yield 2 a [a] [%] |
|---|---|---|---|---|
|
1 |
90 |
1.0 |
6 |
99 |
|
2 |
90 |
1.0 |
3 |
99 |
|
3 |
90 |
1.0 |
1 |
57 |
|
4 |
90 |
0.5 |
6 |
88 |
|
5 |
45 |
1.0 |
6 |
99 |
|
6 |
45 |
1.0 |
3 |
21 |
Reaction conditions: epoxide 1 a (13.9 mmol, 1.0 equiv.), immobilized catalyst 5 bb℗SiO2 (500 mg, 1 mol % catalyst loading with respect to 1 a), T, t, p, solvent‐free. [a] Yields of isolated products are given.