反应详情

温度

100 °C

A suspension of 5-bromo-4-methyl-1-(phenylsulfonyl)-1H-pyrrole-3-carbaldehyde (1.78 g), phenylboronic acid (1.37 g), dichloro[bis(triphenylphosphine)]palladium (0.19 g) and sodium carbonate (1.72 g) in 1,2-dimethoxyethane (30 mL)-water (10 mL) was stirred at 100° C. for 1 hr. 8 mol/L aqueous sodium hydroxide solution (15 mL) was added, and the mixture was stirred at 90° C. for 3 hr. After cooling, the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (eluent: hexane-ethyl acetate=9:1→1:1), and the obtained solid was washed with hexane to give the title compound as a pale-yellow solid (yield 815 mg, 69%).

1. stirringthe mixture was stirred at 90° C. for 3 hr
2. temperatureAfter cooling
3. extractionthe mixture was extracted with ethyl acetate
4. washThe extract was washed with saturated brine
5. dry with materialdried over anhydrous magnesium sulfate
6. concentrationconcentrated under reduced pressure
7. customThe residue was purified by silica gel column chromatography (eluent: hexane-ethyl acetate=9:1→1:1)
8. washthe obtained solid was washed with hexane