反应详情

温度

95 °C

A mixture of 4-chloro-N-[2-(3-hydroxy-propoxy)-6-methyl-phenyl]-N-methyl-3-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-benzamide (206 mg, 0.45 mmol), 2-bromo-5-(trifluoromethyl)-benzonitrile (75 mg, 0.3 mmol), Pd(PPh3)4 (34.7 mg, 0.03 mmol), Na2CO3 (190.8 mg, 1.8 mmol) in dioxane/water (9/1, 1.5 mL), was heated at 95° C. for approximately 16 hrs after degassing of the solvent with a stream of nitrogen. The reaction was allowed to cool to room temperature. The mixture was diluted with water and extracted with ethyl acetate. The organic layer was further washed with brine and dried with MgSO4. The filtrate was evaporated and the residue purified by preparative TLC [eluent: 40% acetone in hexane] to afford 4-chloro-3-(2-cyano-4-trifluoromethyl-phenyl)-N-[2-(3-hydroxy-propoxy)-6-methyl-phenyl]-N-methyl-benzamide 10-1 (120 mg). MS [M+H]+: 502.9; tR=8.15 min. (method 2)

1. customafter degassing of the solvent with a stream of nitrogen
2. temperatureto cool to room temperature
3. additionThe mixture was diluted with water
4. extractionextracted with ethyl acetate
5. washThe organic layer was further washed with brine
6. dry with materialdried with MgSO4
7. customThe filtrate was evaporated
8. customthe residue purified by preparative TLC [eluent: 40% acetone in hexane]