Comparison of the obtained results for the HCR using the catalyst 1 and other catalytic systems.
| Entry | Catalyst | Reaction conditions | Catalyst amount | Time (h) | Yield (%) | Reference |
|---|---|---|---|---|---|---|
| 1 | Trifunctional N,N,O-terdentate amido/pyridyl carboxylate | DMF/145 °C/Na2CO3 | 0.01 mol% | 20 | 92 | 140 |
| Pd(ii) complexes | ||||||
| 2 | Pd(OAc)2 | NMP/135 °C/NaOAc/UV-VIS | 0.05 mol% | 44 | 80 | 141 |
| 3 | CMH–Pd(0) | DMF/120 °C/Et3N | 50 mg | 6 | 90 | 142 |
| 4 | NHC–Pd/IL@SiO2 | NMP/140 °C/NaOAc | 0.01 mol% | 24 | 94 | 143 |
| 5 | Pd(quinoline-8-carboxylate)2 | DMF/130 °C/K2CO3 | 0.01 mol% | 30 | 39–94 | 144 |
| 6 | OCMCS–Pd | DMF/140 °C/Et3N | 0.02 mmol | 12 | 89–98 | 145 |
| 7 | Pd@MET-EDTA-CS | DMF/90 °C/K 2 CO 3 | 0.0027 mol% | 16 | 95 | This work |
| 8 | Pd@MET-EDTA-CS | CH 3 CN/80 °C/K 2 CO 3 | 0.0027 mol% | 18 | 95 | This work |