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Addition of arylboronic acid on 2-cyclopentenone catalysed by PdL5 [42].
 | ||||
| entry | Ar | temp. (°C) | yield (%) | ee (%) |
| 1 | Ph | 30 | 90 | 85 |
| 2 | Ph | 0 | 89 | 87 |
| 3 | Ph | 30 | >99a | 83 |
| 4 | Ph | 0 | 36a | 92 |
| 5 | 4-MeO-C6H4 | 30 | 94 | 82 |
| 6 | 4-CF3-C6H4 | 30 | 91 | 72 |
| 7 | 4-Br-C6H4 | 30 | 95 | 78 |
| 8 | 2-Me-C6H4 | 30 | 94 | 72 |
aAgOTf 6 mol % instead of AgSbF6.
