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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1885168Generated: October 25, 2026

HCID 178450490, compound → HCID 10331542, compound

https://huagongshe.com/reaction/1885168

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHCID 178450490HCID 178450490—
SolventDiphenyl EtherHCID 7583—
ProductHCID 10331542HCID 1033154287.4%

Reaction Steps

Ethyl 2-butyryl-3-(2-fluorophenylamino)acrylate (37 g, 0.13 mol) was added in portions to boiling diphenyl ether (450 ml), then heated at reflux for 1.5 hours. After partial cooling the mixture was diluted with petroleum ether (50 ml). Filtration and washing with petroleum ether gave 3-butyryl-8-fluoro-4(1H)-quinolone (26.5 g), m.p. 176°-178°.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05143920
Source datasetuspto-grants-1992_09
ORD IDord-a0536ca2ddb349c08dd7693a9add5878
Source noteuspto-grants-1992_09