Table 4. Comparison of the synthesis of compounds 6a, 7a and 8a using the Arg@ZY-Fe3O4 catalyst with other reported methods.
| Product | Catalyst | Conditions | Time (min) | Yield (%) |
|---|---|---|---|---|
| 6a | K2CO3 (1 mmol) | MDWa, 70 °C | 240 | 96 (ref. 46) |
| 6a | Zn(l-proline)2 (20 mol%) | EtOH/H2O, reflux | 240 | 89 (ref. 55) |
| 6a | Nano-cellulose-OTiCl3 (3 mg) | EtOH, reflux | 20 | 94 (ref. 52) |
| 6a | Triethanolamine (30 mol%) | H2O, reflux | 45 | 92 (ref. 53) |
| 6a | Arg@ZY-Fe3O4 (10 wt%) | H2O, 90 °C | 5 | 97 (this work) |
| 7a | Picolinic acid (15 mol%) | EtOH/H2O, 60 °C | 10 | 98 (ref. 54) |
| 7a | Piperazine-GO (1 mol%) | EtOH/H2O, 50 °C | 15 | 95 (ref. 61) |
| 7a | Na3[CrMo6O24H6]·8H2O@ZrO2 (20 mg) | EtOH, reflux | 10 | 98 (ref. 44) |
| 7a | Talc (0.06 g) | Solvent-free, 90 °C | 35 | 90 (ref. 60) |
| 7a | Arg@ZY-Fe3O4 (10 wt%) | H2O, 90 °C | 7 | 95 (this work) |
| 8a | Talc (0.06 g) | Solvent-free, 90 °C | 40 | 91 (ref. 60) |
| 8a | Piperidine (0.5 mL) | MW, 140 °C | 2 | 87 (ref. 62) |
| 8a | Zn(l-proline)2 (20 mol%) | EtOH/H2O, reflux | 240 | 90 (ref. 55) |
| 8a | Piperazine-GO (3 mol%) | Solvent-free, 100 °C | 40 | 97 (ref. 61) |
| 8a | Arg@ZY-Fe3O4 (10 wt%) | H2O, 90 °C | 12 | 90 (this work) |
a
Magnetized distilled water.