Table 3 Synthesis of pyrazole 11a–l under both ultrasonic irradiation and conventional method
Compound no. | Product | Ultrasonic irradiation | Silent condition | ||
|---|---|---|---|---|---|
| Â | Â | Time (min.) | Yield% | Time (h) | Yield% |
11a |
| 45 | 90 | 7 | 80 |
11b |
| 45 | 88 | 7 | 76 |
11c |
| 45 | 90 | 6 | 77 |
11d |
| 45 | 88 | 8 | 75 |
11e |
| 45 | 88 | 10 | 76 |
11f |
| 45 | 85 | 10 | 76 |
11g |
| 60 | 89 | 10 | 76 |
11h |
| 60 | 90 | 10 | 77 |
11i |
| 60 | 85 | 11 | 73 |
11j |
| 60 | 85 | 11 | 77 |
11k |
| 60 | 86 | 9 | 75 |
11l |
| 60 | 90 | 10 | 77 |
