反应详情

Twenty-five grams of 4-(2-naphthyloxy)aniline were dissolved in 200 ml of toluene, and 100 ml of 40% aqueous sodium hydroxide solution and 12 g of N,N-dimethylcarbamyl chloride were added thereto. The reaction mixture was heated under reflux for 10 hours, and its temperature was cooled to room temperature. The toluene layer was washed with water, and the solvent was removed under reduced pressure. The residue was recrystallized from ethanol to obtain 18 g of N'-[4-(2-naphthyloxy)phenyl]-N,N-dimethylurea as white needles. M.P., 156°-157° C.

1. temperatureThe reaction mixture was heated
2. temperatureunder reflux for 10 hours
3. washThe toluene layer was washed with water
4. customthe solvent was removed under reduced pressure
5. customThe residue was recrystallized from ethanol