Compound no | R | Conventional method CM | Ultrasound method US | ||
---|---|---|---|---|---|
Time (h) | Yield (%) | Time (h) | Yield (%) | ||
2 | C8H17 | 72 | 84 | 10 | 92 |
3 | C9H19 | 72 | 90 | 10 | 96 |
4 | C10H21 | 72 | 88 | 12 | 92 |
5 | C11H23 | 72 | 92 | 12 | 98 |
6 | C12H25 | 72 | 88 | 12 | 92 |
7 | C14H29 | 72 | 85 | 12 | 92 |
8 | C16H33 | 72 | 89 | 12 | 94 |
9 | C18H37 | 72 | 83 | 12 | 96 |