Table 4. Effect of the Reaction Temperature and Time on the Catalytic Performance of the Pd Complexesa.
entry | catalyst | cocatalyst | T (°C) | time (h) | conv.b (%) | HAc (%) | HYd (%) |
---|---|---|---|---|---|---|---|
1 | 1 | AgOTf | 80 | 25 | 97 | 68 | 4 |
2 | 1 | AgOTf | 80 | 4 | 79 | 57 | 4 |
3 | 1 | AgSbF6 | 80 | 4 | 89 | 58 | 11 |
4 | 2 | AgOTf | 80 | 25 | 99 | 83 | 7 |
5 | 2 | AgOTf | 80 | 4 | 80 | 66 | 7 |
6 | 2 | AgSbF6 | 40 | 4 | 48 | 24 | 4 |
7 | 2 | AgSbF6 | 40 | 25 | 97 | 65 | 9 |
8 | 1 | AgSbF6 | 40 | 4 | 43 | 41 | 4 |
9 | 1 | AgSbF6 | 40 | 25 | 99 | 71 | 8 |
Reaction conditions: 1 mmol mesitylamine, 1 mmol phenylacetylene, 0.01 mmol (1 mol %) catalyst, 2 mol % AgX.
Alkyne conversion.
Yield in hydroamination product.
Yield in hydration product.