Table 1.
Ligand–Free addition of MeLi to imine 8
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|---|---|---|---|---|
| entry | solvent | temp, °C | time, h | conv., %a |
| 1 | toluene | −78 | 4 | 6 |
| 2 | toluene | −63 | 2 | 17 |
| 3 | toluene | −41 | 0.5 | 51 |
| 4 | Et2O | −63 | 2 | 89 |
| 5 | hexane–toluene (9/1) | −78 | 4 | 0 |
Determined by GC analysis of the crude reaction product.
