反应详情

A mixture of 45.6 g (0.3 mole of 1-(3-hydroxyphenyl)urea, 94.5 g (0.6 mole) of 1-bromo-3-chloropropane, 124.4 g (0.9 mole) of anhydrous potassium carbonate and 1 liter of acetone was heated at reflux with mechanical stirring for 20 hr. The mixture was concentrated and the residue was slurried with 1.5 liters of water. The mixture was filtered and the filter cake was recrystallized from 2-propanol to yield 57.0 g (83%) of off-white solid, m.p. 141°-143° C.

1. temperaturewas heated
2. temperatureat reflux
3. concentrationThe mixture was concentrated
4. filtrationThe mixture was filtered
5. customthe filter cake was recrystallized from 2-propanol