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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1719084Generated: October 28, 2026

Ethyl 4,4-difluoroacetoacetate → HCID 136146906, compound

https://huagongshe.com/reaction/1719084

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl 4,4-difluoroacetoacetateHCID 67697—
ReactantSodium MethoxideHCID 10942334—
ReactantButanimidamide hydrochlorideHCID 12828983—
SolventMethanolHCID 887—
SolventEthyl AcetateHCID 8857—
ProductHCID 136146906HCID 136146906100%

Reaction Steps

A mixture of ethyl 4,4-difluoro-3-oxobutanoate (5.0 g), butanimidamide hydrochloride (4.1 g) and sodium methoxide (28% methanol solution, 15 mL) in methanol (50 mL) was stirred overnight. The reaction mixture was diluted with ethyl acetate, washed with 1 M hydrochloric acid, dried over sodium sulfate and concentrated. The residue was purified by silica gel column chromatography to give the title compound as a pale yellow oil (5.6 g, 100%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07803940B2
Source datasetuspto-grants-2010_09
ORD IDord-c08fc3b8f3d54ee08b728e02ac7d0d4d
Source noteuspto-grants-2010_09