| Entry | Peoduct | Ar | Mp (℃) | Yielda (%) |
| 1 | 4a | 4-OCH3-3-OH-C6H3 | 190-192 | 85 |
| 2 | 4b | 4-F-C6H4 | 179-181 | 85 |
| 3 | 4c | 4-Cl-C6H4 | 229-231 | 86 |
| 4 | 4d | 4-Br-C6H4 | 224-226 | 88 |
| 5 | 4e | 4-OH-C6H4 | 223-225 | 84 |
| 6 | 4f | 3-OH-C6H4 | 205-207 | 83 |