Table 3.
Ni-catalyzed Borylation of Heteroaryl Bromides with BBA
![]() | |||||
---|---|---|---|---|---|
entry | product | time | temperature | yield (%) | |
1 | ![]() |
3a | 4 h | rt | 94 |
2a | ![]() |
3b | 4 h | rt | 85 |
3a | ![]() |
3c | 6 h | rt | 74 |
4 | ![]() |
3d | 4 h | rt | 92 |
5 | ![]() |
3e | 4 h | rt | 91 |
6b | ![]() |
3f | 12 h | rt | 82 |
7 | ![]() |
3g | 6 h | rt | 86 |
8b | ![]() |
3h | 4 h | 80 °C | 72 |
9b | ![]() |
3i | 4 h | 80 °C | 74 |
10b | ![]() |
3j | 4 h | 80 °C | 81 |
11b | ![]() |
3k | 4 h | 80 °C | 83 |
12b | ![]() |
3l | 4 h | 80 °C | 83 |
NiCl2(dppp) (0.5 mol %), PPh3 (1 mol %)
NiCl2(dppp) (5 mol %), PPh3(10 mol %)