Process for preparing 2(1h)-quinazolinone derivatives

Details Process for preparing 2(1h)-quinazolinone derivatives Process for preparing 2(1h)-quinazolinone derivatives

C - Chemistry, Metallurgy

07

D

260/254, 260/242

C07D 239/82 (2006.01) C07D 491/04 (2006.01)

Patent

CA 1046063

A NOVEL PROCESS FOR PREPARING 2(1H)-QUINAZOLINONE DERIVATIVES ABSTRACT OF THE DISCLOSURE 2(1H)-Quinazolinone derivatives such as 1- cyclopropylmethyl-4-phenyl-6-chloro-2(1H)-quinazolinone are prepared in high yield with high purity by reacting the corresponding 3,4-dihydro-2(1H)-quinazolinone deri- vative with chlorine or bromine in the presence or absence of an alkali in an inert solvent.

231296

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