Conditions | Compound 1b | Compound 1c | Compound 3b | Compound 3d | ||||
C | M | C | M | C | M | C | M | |
Temperature (˚C) | 70 | 120 | - | 100 | 200 | 200 | 200 | 200 |
Time (min) | 30 | 10 | 30 | 5 | 240 | 20 | 210 | 20 |
Yield (%) | 84 | 89 | 50 | 82 | 50 | 88 | 91 | 97 |