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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 437967Generated: October 31, 2026

4-Fluoroaniline → HCID 178467269, compound

https://huagongshe.com/reaction/437967

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-FluoroanilineHCID 9731—
Reactant3,5-Diacetyl-2,6-dihydroxy-4h-pyran-4-oneHCID 135465969—
SolventMethanolHCID 887—
ProductHCID 178467269HCID 178467269—

Reaction Steps

p-Fluoroaniline (2.2 g., 0.02 m.) is added to a hot solution of 4.24 g. (0.02 m.) of 3,5-diacetyl-4,6-dihydroxy-2H-pyran-2-one in 150 ml. of methanol. The mixture is refluxed overnight and filtered to give 5-acetyl-3-[1-(p-fluorophenylamino)ethylidene]-4-hydroxy-2H-pyran-2,6-(3H)-dione, m.p. 199°-201° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04032652
Source datasetuspto-grants-1977_06
ORD IDord-52b2f877bc434bd0aab428aca5213309
Source noteuspto-grants-1977_06