Table 6.
One-pot, two-step Michael/Stetter reaction with activated allenes 
| Entry | 18 | Solvent | T1, °C | T2, °C | Product (19) | Yield, % | ee, % |
| 1 | 18a | THF | 23 | 0 |  |
60 | 78 |
| 2 | 18b | PhMe | 23 | 23 |  |
50 | 98 |
| 3 | 18b | PhMe | 110 | 110 | 19b | 50 | 89 |
| 4 | 18b | CH2CI2 | 23 | 23 | 19b | 59 | 96 |
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