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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1685803Generated: October 30, 2026

Sodium hydride → HCID 24782634, compound

https://huagongshe.com/reaction/1685803

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium hydrideHCID 24758—
Reactant4-Cyano-3-tetrahydrothiophenoneHCID 326676—
ReactantLoxoprofen Impurity 18HCID 11242311—
SolventDimethylformamideHCID 6228—
ProductHCID 24782634HCID 2478263446.2%

Reaction Steps

4-Cyano-3-tetrahydrothiophenone (5.0 g) was dissolved in N,N-dimethylformamide (30 ml), then, sodium hydride (oil, about 60%, 950 mg) was added under ice cooling, and stirred at the same temperature for 30 minutes. Then, to the mixture was added a solution of methyl 2-(4-bromomethylphenyl)propionate (10.1 g) in N,N-dimethylformamide (10.0 ml) under ice cooling, and the reaction mixture was stirred overnight at room temperature. The reaction mixture was quenched with water, and extracted with ethyl acetate. The organic layer was washed with water and saturated brine, and then dried over sodium sulfate. The solvent was evaporated under reduced pressure, and then the residue was purified by silica gel column chromatography (hexane/ethyl acetate=5/1) to give the title compound (5.5 g, 46%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08148421B2
Source datasetuspto-grants-2012_04
ORD IDord-97b31bd10c3d41a797fdba994730c520
Source noteuspto-grants-2012_04