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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 920890Generated: October 31, 2026

Ethyl 4-chloroacetoacetate → HCID 86683109, compound

https://huagongshe.com/reaction/920890

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl 4-chloroacetoacetateHCID 69484—
Reactant2-Amino-4-fluoropyridineHCID 18327808—
SolventTetrahydrofuranHCID 8028—
ProductHCID 86683109HCID 8668310917.7%

Reaction Steps

A mixture of 4-fluoropyridin-2-amine (1.0 g, 8.92 mmol) and ethyl 4-chloro-3-oxobutanoate (1.46 mL, 10.7 mmol) in THF (20 mL) was stirred at about reflux overnight. The residue was concentrated and was chromatographed on the C18 ISCO Combiflash system using the following gradient: A: Water (0.1% NH4HCO3); B: Methanol; 10% B to 60% B over 20 min to give 350 mg product as brown oil (350 mg, yield: 17.6%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09273068B2
Source datasetuspto-grants-2016_03
ORD IDord-6ebfe3e6652242c38d1910421a6138aa
Source noteuspto-grants-2016_03