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| ||||
|---|---|---|---|---|
| Entry | Cat. | Time (h) | Yielda (%) | E : Zb |
| 1 | MgR2 | 24c | 0 | — |
| 2 | [NaMgR3] (13) | 18c | 99 | 63 : 37 |
| 3 | [(TMEDA)2Na2MgR4] (16) | 3 | 28 | 29 : 71 |
| 4 | [(PMDETA)2K2MgR4] (3) | 3 | 99 | 93 : 7 |
Yields determined by 1H NMR using ferrocene as internal standard.
Determined by 1H NMR spectroscopy.
Reaction carried out at 80 °C.
