Table 1.
Compounds synthesized under Scheme 1.
|
|
|
| 2 h, 82% | 3 h, 87% | 2.5 h, 76% |
|
|
|
| 2 h, 88% | 1 h, 82% | 3 h, 80% |
|
|
|
| 3 h, 86% | 2 h, 81% | 3 h, 78% |
|
|
|
| 2 h, 80% | 3 h, 76% | 2.5 h, 83% |
|
|
|
| 3 h, 87% | 2 h, 85% |