HCID 178450501, compound → HCID 10060423, compound

Participants

Reaction Steps

Ethyl 2-butyryl-3-(4-methoxyphenylamino)acrylate (78 g) was added dropwise to boiling diphenyl ether (600 ml) and heating continued under reflux for 45 minutes. When cool, the mixture was diluted with petrol and the precipitate was filtered off, washed with petrol and dried to give 3-butyryl-6-methoxy-4(1H)-quinolone (24 g, 49%) as a light tan solid, m.p. 252°-254°.

Provenance & Evidence