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Additions of Achiral Allenylsilanes to Tri-O-acetyl-D-galactal
 | ||||
|---|---|---|---|---|
| Allene | R | Yielda | drb | product |
| 4a | Me | 82 | >20:1 | 6a |
| 4b | Et | 86 | >20:1 | 6b |
| 4c | Ph | 39 | >20:1 | 6c |
| 4d | CH2CO2Me | 63 | >20:1 | 6d |
Isolated yield after chromatographic purification.
Diastereomeric ratios determined by 1H NMR analysis of crude material.
