Table 5.
Survey of Asymmetric Allylation Reactions.
![]() | ||||
---|---|---|---|---|
entry | ![]() |
conditions | yield, %a |
erb |
1 | ![]() |
(S)-BINOL (24 mol %) Ti(Oi-Pr)4 (20 mol %) −78 to −20 °C |
30 | 99:1 |
2 | ![]() |
(+)-Ipc2B-Cl (1 equiv) −78 °C |
70 | 90:10 |
3 | ![]() |
(+)- Ipc2B-OMe (1 equiv) −78 °C |
73 | 96:4 |
4 | ![]() |
(+)- Ipc2B-OMe (1 equiv) −100 °C |
71 | 96:4 |
5 | ![]() |
(R,R)-65 (10 mol %) i-Pr2NEt / CH2Cl2 −78 °C |
76 | 95:5 |
Yield corresponds to isolated product.
The enantiomeric ratio was determined by CSP-SFC.