反应详情

温度

180 °C

A solution of palladium acetate (0.0057 g, 0.025 mmol) and (±)-2,2″-bis(diphenylphosphino)-1,1″-binaphthalene (0.015 g, 0.024 mmol) in DMF (7.1 mL) was stirred at room temperature for 3 minutes. Then 5-bromo-2-(2,6-difluorophenyl)oxazole-4-carbonitrile (0.100 g, 0.35 mmol), 4-morpholinoaniline (0.250 g, 1.40 mmol) and potassium phosphate tribasic (0.149 g, 0.70 mmol) were added and the mixture heated in the microwave for 3 minutes at 180° C. The reaction was diluted with EtOAc and washed with water. The organic phase was passed through a MP-SH resin cartridge, dried over MgSO4 and the solvent removed in vacuo. The residue was purified by silica gel column chromatography using a gradient 10-100% EtOAc in hexanes to afford 2-(2,6-difluorophenyl)-5-(4-morpholinophenylamino)oxazole-4-carbonitrile (0.035 g, 0.09 mmol, 26%) as an off white solid. 1H NMR (DMSO) δ 3.08 (4H, t), 3.74 (4H, t), 6.97 (2H, d), 7.24 (2H, d), 7.33 (2H, t), 7.64 (1H, m), 10.58 (1H, s). LCMS (2) Rt: 2.92 min; m/z (ES+) 383.

1. washwashed with water
2. dry with materialdried over MgSO4
3. customthe solvent removed in vacuo
4. customThe residue was purified by silica gel column chromatography