Table 3.
Entry | R | Oxazolidine | Yield (%) |
---|---|---|---|
1 | OMe | (±)-7a | 15 |
2 | OEt | (±)-7b | 37 |
3 | OBn | (±)-7c | 19 |
4 | OPh | (±)-7d | 13 |
5 | Me | (±)-7e | 33 |
6 | Ph | (±)-7f | 32 |
7 | m,p-Cl2C6H3 | (±)-7g | 18 |
8 | m,p-(CH3O)2C6H3 | (±)-7h | 93 |
9 | p-FC6H4 | (±)-7i | 27 |
10 | 1-naphthyl | (±)-7j | 33 |
11 | 2-thienyl | (±)-7k | 25 |