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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 619293Generated: October 29, 2026

Hydrochloric Acid → HCID 21846234, compound

https://huagongshe.com/reaction/619293

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantEthyl isobutyrateHCID 7342—
ReactantSodium hydrideHCID 24758—
ReactantHCID 21846387HCID 21846387—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 21846234HCID 2184623472%

Reaction Conditions

Temperature0 °C

Reaction Steps

1-(4,7-difluoronaphth-1-yl)-ethanone (0.150 g, 0.72 mmol) was dissolved in dry dioxane (1 mL) and cooled to 0° C. Sodium hydride (0.145 g, 3.6 mmol, 60 wt. % dispersion) was added and the reaction mixture was stirred for 1 hour at room temperature. Ethyl isobutyrate (1.0 mL, 7.2 mmol) was added in one portion and the solution was heated to reflux for 15 minutes. After cooling to room temperature, the reaction mixture was poured onto 10% aqueous hydrochloric acid and extracted with methylene chloride. The organic layer was dried over sodium sulfate and purified by column chromatography to give 1-(4,7-difluoronaphth-1-yl)-4-methylpentane-1,3-dione (0.120 g, 72%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05958934
Source datasetuspto-grants-1999_09
ORD IDord-5e9e477c1de14e5fa956725897f4539f
Source noteuspto-grants-1999_09