Table 2.1.
Entry | R1 | R2 | R3 | Cat | ee (%) | Yield (%) |
---|---|---|---|---|---|---|
1 | Me | Ph | Me | 9b | 77 | 87 |
2 | Et | Ph | Me | 9b | 68 | 92 |
3 | Me | m-PhO-Ph | Me | 9b | 74 | 96 |
4 | Me | 4-i-Bu-Ph | Me | 9b | 77 | 88 |
5 | Ph | Me | 2-t-Bu-Ph | 9a | 79 | 87 |
6 | Ph | i-Bu | 2-t-Bu-Ph | 9a | 84 | 79 |
7 | o-Anisyl | Me | 2-t-Bu-Ph | 9a | 94 | 78 |
8 | p-Cl-Ph | i-Pr | 2-t-Bu-Ph | 9a | 89 | 97 |
9 | 3-Thienyl | i-Pr | 2-t-Bu-Ph | 9a | 79 | 94 |