反应详情

温度

100 °C

Under an argon atmosphere, a suspension of 5-bromo-4-methyl-1-(phenylsulfonyl)-1H-pyrrole-3-carbaldehyde (656 mg), 3-thiopheneboronic acid (511 mg), dichloro[bis(triphenylphosphine)]palladium (70 mg) and sodium carbonate (636 mg) in 1,2-dimethoxyethane (10 mL)-water (3 mL) was stirred at 100° C. for 2 hr. After cooling, the reaction mixture was filtered through celite, and celite was washed with ethyl acetate. The organic layer was separated from the filtrate, washed with water and 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=19:1→7:3) to give the title compound as a colorless oil (yield 549 mg, 83%).

1. temperatureAfter cooling
2. filtrationthe reaction mixture was filtered through celite, and celite
3. washwas washed with ethyl acetate
4. customThe organic layer was separated from the filtrate
5. washwashed with water and saturated brine
6. dry with materialdried over anhydrous magnesium sulfate
7. concentrationconcentrated under reduced pressure
8. customThe residue was purified by silica gel column chromatography (eluent: hexane-ethyl acetate=19:1→7:3)