Table 15.
Correlation of bridging ligand substituent to the enantioselectivity of the addition
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|---|---|---|---|---|---|---|
| ligand, er |
||||||
| imine | 12ac | 12bc | 12cc | 12ec | 12jc | 12dc |
| 8 | 83.5:16.5 | 87.5:12.5 | 92.0:8.0 | 94.5:5.5 | 92.6:7.4 | 87.0:13.0 |
| 10 | 97.0:3.0 | 91.5:8.5 | 86.5:13.5 | 90.5:9.5 | 89.0:11.0 | n/a |
| 11 | 96.5:3.5 | 94.5:5.5 | 93.5:6.5 | 93.5:6.5 | 88.5:11.5 | n/a |
