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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 437964Generated: October 30, 2026

2-Chloroaniline → HCID 178467262, compound

https://huagongshe.com/reaction/437964

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-ChloroanilineHCID 7240—
Reactant3,5-Diacetyl-2,6-dihydroxy-4h-pyran-4-oneHCID 135465969—
SolventMethanolHCID 887—
ProductHCID 178467262HCID 178467262—

Reaction Steps

o-Chloroaniline (2.55 g., 0.02 m.) is added to 4.24 g. (0.02 m.) of 3,5-diacetyl-4,6-dihydroxy-2H-pyran-2-one in 150 ml. of methanol and the mixture is refluxed overnight. The reaction mixture is concentrated, cooled and filtered to give 5-acetyl-3-[1-(o-chlorophenylamino)ethylidene]-4-hydroxy-2H-pyran-2,6(3H)-dione, m.p. 143°-145° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04032652
Source datasetuspto-grants-1977_06
ORD IDord-9cde278dbf644e908d76a66960ba9c0e
Source noteuspto-grants-1977_06