反应详情

5-(2-Fluorophenyl)-4-iodo-1-(pyridin-3-ylsulfonyl)-1H-pyrrole-3-carbaldehyde (489 mg), copper (I) cyanide (480 mg), tris(dibenzylideneacetone)dipalladium (0) (49 mg) and 1,1′-bis(diphenylphosphino)ferrocene (89 mg) were mixed in 1,4-dioxane (20 mL), and the mixture was heated under reflux for 3 hr. The reaction mixture was allowed to cool, diluted with ethyl acetate, and filtered. The obtained filtrate was washed with a saturated aqueous sodium hydrogencarbonate solution 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=2:3→3:7) to give the title compound as a colorless oil (yield 380 mg, about 100%).

1. temperaturethe mixture was heated
2. temperatureunder reflux for 3 hr
3. temperatureto cool
4. filtrationfiltered
5. washThe obtained filtrate was washed with a saturated aqueous sodium hydrogencarbonate solution 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=2:3→3:7)