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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1046774Generated: October 30, 2026

Hydrochloric Acid → HCID 58232217, compound

https://huagongshe.com/reaction/1046774

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantEthyl AcetoacetateHCID 8868—
ReactantSodium hydrideHCID 24758—
Reactant1-(Bromomethyl)-2-fluoro-3-nitrobenzeneHCID 59139151—
SolventTetrahydrofuranHCID 8028—
ProductHCID 58232217HCID 5823221763%

Reaction Conditions

Temperature0 °C

Reaction Steps

Ethyl acetoacetate (37.4 mL, 294 mmol) was added at 0° C. to a suspension of sodium hydride (65%, 10.8 g) in THF (600 mL), and the mixture was stirred at 0° C. for 30 minutes. It was added dropwise at 0° C. to a solution of 1-bromomethyl-2-fluoro-3-nitrobenzene (compound 1a-1) (68.7 g, 294 mmol) in THF (400 mL), and the reaction mixture was stirred at room temperature overnight. The reaction mixture was then poured into 0.5N hydrochloric acid and extracted with ethyl acetate. The organic extract was washed with saturated saline and dried over magnesium sulfate. A crude product was obtained by vacuum concentration, and purified by column chromatography (ethyl acetate:hexane=1:3) to yield the title compound (52.2 g, 63%) as a yellow oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08569378B2
Source datasetuspto-grants-2013_10
ORD IDord-09dee769d6f948f49774a0e2c9337073
Source noteuspto-grants-2013_10