反应详情

温度

110 °C

To 4-bromo-1-methyl-2-nitro-benzene (500 mg), tris (dibenzylideneacetone) dipalladium (120 mg) and potassium phosphate (928 mg), morpholine (242 mg), S-Phos (95 mg) and deaerated DMF (5 ml) were added, followed by irradiation of ultrasonic wave for 5 minutes. This was stirred at 110° C. for 5 hours. After cooling to room temperature, water was added, followed by extraction with ethyl acetate, and the organic layer was washed with brine, and dried over magnesium sulfate. After the magnesium sulfate was filtered off, the solvent was distilled off under reduced pressure, followed by purification by silica gel column chromatography (hexane/ethyl acetate=4/1), to obtain the desired compound as an orange solid (478 mg, 93%).

1. customfollowed by irradiation of ultrasonic wave for 5 minutes
2. temperatureAfter cooling to room temperature
3. extractionfollowed by extraction with ethyl acetate
4. washthe organic layer was washed with brine
5. dry with materialdried over magnesium sulfate
6. filtrationAfter the magnesium sulfate was filtered off
7. distillationthe solvent was distilled off under reduced pressure
8. customfollowed by purification by silica gel column chromatography (hexane/ethyl acetate=4/1)