反应详情

Ethyl 2-cyclohexylcarbonyl-3-(2-methoxyphenylamino)acrylate (20 g, 0.06 mol) was added in portions to boiling diphenyl ether (200 ml) and the mixture was heated under reflux for 1.5 hours. When cool, the mixture was diluted with petroleum ether and allowed to crystallise overnight to give 3-cyclohexylcarbonyl-8-methoxy-4(1H)-quinolone (6.0 g, 35.2%), m.p. 168°-70° C.

1. temperaturethe mixture was heated
2. temperatureunder reflux for 1.5 hours
3. temperatureWhen cool
4. customto crystallise overnight