Table 2.
entry | alkene | product | yieldb | ee(%)c/oxidation method | ||
---|---|---|---|---|---|---|
RuCl3, NalO4 | O3, NaClO2 | KMnO4, NalO4 | ||||
1. | 2 | 96 | 98 | 78 | 96/ozone | |
2. | 3 | 91 | 95 | 68 | 97/ozone | |
3. | 4 | 59 | --d | 67 | 99e/RuCl3 | |
4. | 5 | 91 | --d | 40 | 97/RuCl3 | |
5. | 6 | --d | 79 | 93 | 91/KMnO4 | |
6. | 7 | 84 | -- | -- | 97/RuCl3 |
See experimental section for details.
Yields determined by isolated mass after column chromatography.
Determined by GC.
decomposition of starting alkene.
Enantiomeric excess assigned by comparison to literature rotation (ref. 21)