Table 2.
Earlier Work by Hosomi et al. with Substituted Alkenols12

| Entry | Alkenol | R1 | R2 | R3 | Aldehyde | R4 | Product | Yield (%) | dr |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 16 | Me | H | H | 2 | Ph | 17 | 85 | 19:1 |
| 2 | 16 | Me | H | H | 8 | 4-NCC6H4 | 18 | 90 | 16:1 |
| 3 | 16 | Me | H | H | 12 | (CH2)6Me | 19 | 84 | 24:1 |
| 4 | 20 | H | Me | H | 2 | Ph | 21 | 82 | 4:1 |
| 5 | 20 | H | Me | H | 8 | 4-NCC6H4 | 22 | 84 | 20:1 |
| 6 | 20 | H | Me | H | 12 | (CH2)6Me | 23 | 80 | 4:1 |
| 7 | 24 | H | H | Me | 2 | Ph | 25 | 56 | 20:1 |
| 8 | 24 | H | H | Me | 8 | 4-NCC6H4 | 26 | 68 | 20:1 |
| 9 | 24 | H | H | Me | 12 | (CH2)6Me | 27 | 65 | 19:1 |