反应详情

Ethyl 2-hexanoyl-3-(2-methoxyphenylamino)acrylate (18 g, 0.056 mol) was added in portions to boiling diphenyl ether (200 ml) and the mixture heated under reflux for 1 hour. After cooling, the mixture was diluted with petroleum ether, filtered and the solid washed with petroleum ether to give 3-hexanoyl-8-methoxy-4(1H)-quinolone (5.2 g, 33.8%), m.p. 169°-71° C.

1. temperaturethe mixture heated
2. temperatureunder reflux for 1 hour
3. temperatureAfter cooling
4. filtrationfiltered
5. washthe solid washed with petroleum ether