Table 3.
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
96% ee 84% yield |
96% ee 81% yield |
93% ee 65% yield |
89% ee 71% yield |
96% ee 83% yield |
93% ee 82% yield |
94% ee 82% yield |
93% ee 87% yield |
9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
92% ee 82% yield |
92% ee 89% yield |
96% ee 88% yield |
97% ee 60% yield |
92% ee 62% yield |
90% ee 85% yield |
0% ee 12% yield |
95% ee 61% yieldb |
17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 |
84% ee 71% yield |
X=H, 91% ee, 87% X=F, 85% ee, 73% |
92% ee 87% yield |
88% ee 87% yield |
94% ee 96% yield |
97% ee 78% yield |
91% ee 70% yield |
96% ee 89% yield |
Enantiomeric excess was determined by HPLC using a chiral stationary phase (see the Supporting Information for details).
Isolated yield of the corresponding alcohol over two steps after reduction of the acid with LiAlH4.