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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 729945Generated: October 29, 2026

Sodium hydride → HCID 57833537, compound

https://huagongshe.com/reaction/729945

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium hydrideHCID 24758—
ReactantEthyl 4-nitrophenylacetateHCID 79517—
Reactant4-Fluoro-2-(trifluoromethyl)pyridineHCID 44891496—
SolventDimethylformamideHCID 6228—
ProductHCID 57833537HCID 5783353741.4%

Reaction Steps

To a solution of ethyl (4-nitrophenyl)acetate (760 mg, 3.6 mmol) in DMF (10 mL) was added 60% sodium hydride (145 mg, 3.6 mmol). The deep purple reaction mixture was stirred at rt for 30 min, then 4-fluoro-2-trifluoromethyl-pyridine (500 mg, 3.0 mmol) was added. After heating at 70° C. for 2 h, the mixture was poured onto ice water and extracted with ethyl acetate. The organic layers were washed with water and brine, then dried over sodium sulfate and concentrated in vacuo. The residue was purified by column chromatography, eluting with 10-30% ethyl acetate in hexanes, to give (4-nitro-phenyl)-(2-trifluoromethyl-pyridin-4-yl)-acetic acid ethyl ester as a viscous yellow oil (440 mg, 41%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07582646B2
Source datasetuspto-grants-2009_09
ORD IDord-1cc9eb280fe341a387a54bf0ba154636
Source noteuspto-grants-2009_09