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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 437976Generated: November 2, 2026

HCID 14417313, compound → HCID 178467271, compound

https://huagongshe.com/reaction/437976

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHCID 14417313HCID 14417313—
Reactant3,5-Diacetyl-2,6-dihydroxy-4h-pyran-4-oneHCID 135465969—
SolventMethanolHCID 887—
ProductHCID 178467271HCID 178467271—

Reaction Steps

To a boiling solution of 2.67 g. (0.0123 m.) of 3,5-diacetyl-4,6-dihydroxy-2H-pyran-2-one in 50 ml. of methanol is added 1.8 g. (0.0132 m.) of p-aminoformanilide. Additional methanol is added (30 ml.) and reflux is continued for 40 minutes. The reaction mixture is filtered and the solid recrystallized to yield 5-acetyl-3-[1-(p-formamidophenylamino)ethylidene]-4-hydroxy-2H-pyran-2,6 (3H)-dione, m.p. 247°-248° C. (dec.).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04032652
Source datasetuspto-grants-1977_06
ORD IDord-7eb4703ba4e04933b3586950dc45253e
Source noteuspto-grants-1977_06