反应详情

495 g (5 mols) of cyclohexylamine and 390 g (6.5 mols) of urea are heated under reflux in 750 ml of water. After the splitting-off of ammonia is complete, the mixture is cooled down and the product is filtered off with suction. After washing and drying, 638 g of N-cyclohexylurea (90% of theory) are obtained.

1. temperaturethe mixture is cooled down
2. filtrationthe product is filtered off with suction
3. washAfter washing
4. customdrying