Table 10.
R | R1 | w/ TMSN3 5 Examples yield (%)a (dr)c |
w/ HN3 5 Examples yield (%)b (dr)c |
---|---|---|---|
Ph | Me | 75 (4:1) | 75 (4:1) |
Ph | C5H11 | 83 (6.5:1) | 83 (6.5:1) |
Ph | Ph | 84 (2.6:1) | 47 (1:1) |
4-ClC6H4 | Me | 79 (3.6:1) | 53 (3.5:1) |
2-Naphthyl | Me | 52 (5.6:1) | 53 (3:1) |
1-Naphthyl | Me | 20 (2.6:1) | 60 (5:1) |
Cy | Me | 78 (2.7:1) | 78 (3:1) |