反应详情

温度

-78 °C

A solution (100 mL) of ethyl 5-phenyl-1H-pyrrole-3-carboxylate (2.16 g) in tetrahydrofuran was cooled to −78° C., and a 1.5 mol/L solution (24 mL) of diisobutylaluminum hydride in toluene was added dropwise over 10 min. The mixture was further stirred at −78° C. for 1 hr, water (2 mL) was added dropwise over 2 min, and the mixture was further stirred at room temperature for 1 hr. To the reaction mixture were added celite and anhydrous magnesium sulfate, the mixture was filtered and the filtrate was concentrated under reduced pressure to give the title compound as a pale-red powder (yield 1.51 g, 87%).

1. stirringthe mixture was further stirred at room temperature for 1 hr
2. filtrationthe mixture was filtered
3. concentrationthe filtrate was concentrated under reduced pressure