反应详情

温度

100 °C

3-amino-1-phenyl-1H-pyrazole-4-carboxamide (50 mg, 0.247 mmol), 4-bromophenyl methyl sulfone (58.1 mg, 0.247 mmol), Pd2 dba3 (22.64 mg, 0.025 mmol), K2CO3 (37.6 mg, 0.272 mmol) and X-Phos (58.9 mg, 0.124 mmol) were added to a 5 mL microwave vial. Degassed EtOH (0.75 mL) was added and the vial evacuated and back-filled with N2 (×3). The resulting mixture was stirred at 100° C. for 4 hours. Room temperature was attained, MeOH was added and the solvent removed in vacuo while loading onto silica. Purification of the residue by MPLC (0-6% MeOH—CHCl3) gave 3-{[4-(methylsulfonyl)phenyl]amino}-1-phenyl-1H-pyrazole-4-carboxamide as a pale yellow solid after triturating in DCM.

1. customthe vial evacuated
2. additionback-filled with N2 (×3)
3. customRoom temperature
4. additionMeOH was added
5. customthe solvent removed in vacuo
6. customPurification of the residue by MPLC (0-6% MeOH—CHCl3)