Table 6.
Entry | Ketone | Product | Yield | d.r. |
---|---|---|---|---|
1 |
162 |
163 |
69 | 7:1 |
2 |
164 |
165 |
56 | N/A |
3 |
166 |
167 |
52 | N/A |
4 |
168 |
169 |
53 | >20:1 |
Reaction conditions: 10 mol % Ni(cod)2, 15 mol % P(t-Bu)3, 2.0 equiv. diene, 2.0 equiv. B2(pin)2 (74), 0.2 M THF, rt, 48 h. Then, oxidative workup with H2O2 and NaOH.