Table 2.
entry | R | product | yield(%)b |
---|---|---|---|
1 | Bn | 2 | 89 |
2 | Me | 3 | 79 |
3 | allyl | 4 | 78 |
4 | propargyl | 5 | 85 |
5 | 4-MeO-C6H4CH2OH | 6 | 81 |
6 | 7 | 80 | |
7 | 8 | 75 | |
8c | 9 | 81d | |
9 | 10 | 75d | |
10 | 11 | 89 |
See Supporting Information for details.
Isolated yields.
CH2Cl2 used as solvent.
1.2:1 dr (determined by 1H NMR spectroscopy).