HCID 21387991, compound → STK374259

Participants

Reaction Steps

Ethyl 4(2-(o-fluorobenzoyl)-4-chlorophenyl)allophanate (0.2 g) was dissolved in a mixture of 6 ml of ethanol and 0.8 ml of a 20 % aqueous solution of caustic soda, and the resulting mixture was refluxed for 1 hour. After the ethanol was removed by distillation under reduced pressure, the obtained residue was acidified with concentrated hydrochloric acid and cooled overnight. Then the crystals were collected by filtration and dried to give 0.14 g of 4-(o-fluorophenyl)-6-chloro-2(1H)-quinazolinone having a melting point of over 300° C.

Provenance & Evidence