反应详情

5-Chloro-pyridazin-3-one (1 eq, 5.06 mmol, 660 mg) and 3-(N-Methylaminocarbonyl)phenyl boronic acid (1.1 eq, 5.56 mmol, 996 mg) are dissolved in dioxane (4 ml), water (2 ml) and EtOH (2 ml) and K2CO3 (2 eq, 10.1 mmol, 1.40 g) is added. Pd(PPh3)4 (0.1 eq, 0.5 mmol, 584 mg) is then added and the reaction mixture is heated using microwave radiation at 140° C. for 20 min. The reaction mixture is diluted with EtOAc/H2O and filtered. The organic layer is then separated and the aqueous layer is extracted with EtOAc (2×20 ml). The organic layer is washed with NaHCO3, brine, dried over MgSO4, filtered and evaporated to dryness to yield N-Methyl-3-(6-oxo-1,6-dihydro-pyridazin-4-yl)-benzamide as a white solid which did not require further purification; [M+H]+=230

1. temperaturethe reaction mixture is heated
2. customat 140° C.
3. customfor 20 min
4. filtrationfiltered
5. customThe organic layer is then separated
6. extractionthe aqueous layer is extracted with EtOAc (2×20 ml)
7. washThe organic layer is washed with NaHCO3, brine
8. dry with materialdried over MgSO4
9. filtrationfiltered
10. customevaporated to dryness