反应详情

(2-Bromo-cyclopent-1-enyl)trimethyl stannane (˜80% pure) (13.150 g, 43.7 mmol), ethyl-3-iodobenzoate (24.000 g, 87.4 mmol), triphenylarsine (4.000 g) and tris(dibenzylideneacetone)palladium (0) (1.500 g), were heated in dimethylformamide (20 mL) at 100° C., under nitrogen for 92 hours. The reaction mixture was then filtered through highflo, thoroughly washed with dichloromethane, reduced to an oil, and purified by chromatography with iso-hexane containing ether (2%–50%) to give the title compound (4.000 g, 28%).

1. filtrationThe reaction mixture was then filtered through highflo
2. washthoroughly washed with dichloromethane
3. custompurified by chromatography with iso-hexane
4. additioncontaining ether (2%–50%)