| Entry | R | Molecular Weight | Yield (%) |
| 3a | 4-OCH3-C6H4 | 466.44 | 96 |
| 3b | 3,4,5-triOCH3-C6H4 | 526.49 | 97 |
| 3c | 4-Br-C6H4 | 515.31 | 91 |
| 3d | -C6H5 | 436.41 | 91 |
| 3e | 2-OH-3-Br-C6H3 | 531.31 | 95 |
| 3f | 4-NO2-C6H4 | 481.41 | 84 |
| 3g | 4-CH3-C6H4 | 450.44 | 94 |
| 3h | 4-F-C6H4 | 454.40 | 86 |
| 3i | 5-CH3-fur-2-yl | 440.40 | 86 |