反应详情

Around bottom flask was charged with 4′-bromo-2-nitrobiphenyl (100 mmol) and triethyl phosphite (100 mL) and set to reflux under a nitrogen atmosphere for 24 hours. Upon cooling, the solvent was distilled off under vacuum, and the crude product was recrystallized from hot toluene to give 2-bromo-9H-carbazole in 40% yield.

1. temperatureto reflux under a nitrogen atmosphere for 24 hours
2. temperatureUpon cooling
3. distillationthe solvent was distilled off under vacuum
4. customthe crude product was recrystallized from hot toluene