反应详情

A solution of 10.0 g (0.285 mole) of 1-(2-benzoyl-4-chlorophenyl)-3-phenylurea in 50 ml ethanol was refluxed for 18 hr, and then cooled. The solid that formed was collected on a filter and washed with ethanol to give 9.46 g (88%) of 6-chloro-4-ethoxy-3,4-dihydro-3,4-diphenyl-2(1H)-quinazolinone as colorless crystals: mp 209°-211°. The 1H nmr spectrum shows the presence of an ethyl group in addition to aromatic hydrogens.

1. temperaturecooled
2. customThe solid that formed
3. customwas collected on
4. filtrationa filter
5. washwashed with ethanol