Product and reaction efficiency of formation of different acridine derivatives using heat-treated and solvent-free Cu/NaY catalysta.
| Entry | Structure of products (acridine product code) | Time (min) | Isolated yields (%) | M. P. (°C) | |
|---|---|---|---|---|---|
| Observed | Reported | ||||
| 1 |
|
3 | 97 | 244–246 | 246–248 |
| 2 |
|
2 | 97 | 289–291 | 288–290 |
| 3 |
|
1 | 98 | 234–235 | 233–235 |
| 4 |
|
3 | 98 | 268–270 | 273–275 |
| 5 |
|
1 | 96 | 301–303 | 298–300 |
a
Reaction conditions: 2 mmol of dimedone, 1 mmol of benzaldehyde, 1 mmol of ammonium nitrate and 2 mg of Cu/NaY catalyst, 110 °C.