Table 2.
Palladium-Catalyzed, Copper(I)-Mediated Coupling of 2
 | ||||
|---|---|---|---|---|
| Entry | R1 | R2 | Time (h) | Yield (%) |
| 1 |  |
 |
26 | 89 |
| 2 |  |
 |
22 | 83 |
| 3 |  |
 |
19 | 89 |
| 4 |  |
 |
19 | 87 |
| 5 |  |
 |
19 | 86 |
| 6 |  |
 |
27 | 91 |
| 7 |  |
 |
13 | 97 |
| 8 |  |
 |
48 | 66 |
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