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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2297531Generated: October 30, 2026

Dimethylformamide → HCID 86752404, compound

https://huagongshe.com/reaction/2297531

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantEthyl AcetoacetateHCID 8868—
Reactant3-Fluorobenzyl chlorideHCID 9974—
ReactantSodium hydrideHCID 24758—
SolventBenzeneHCID 241—
ProductHCID 86752404HCID 86752404—

Reaction Steps

To a solution of 500 mL of 10% dimethylformamide in benzene was added 58.6% NaH (41 g, 1.0 mol) cooled in an ice bath was added ethyl acetoacetate (130 g, 1.0 mol) was added. The reaction was stirred at room temperature for 30 minutes, and m-fluorobenzyl chloride (145 g, 1.0 mol) was added. The reaction was heated to reflux for 3 hours and gave an NaCl precipitate which was then removed by filtration. The filtrated was poured into H2O, acidified with concentrated HCl and was extracted with a mixture of ether and benzene. The organic layer was washed with H2O, brine, dried over Na2SO4 and concentrated in vacuo. The crude product was purified by distillation (112-119° C./25 mmHg) to give 1 (133 g, 56%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06492365B1
Source datasetuspto-grants-2002_12
ORD IDord-b983a5be46a04c89ad6e3469cdf21444
Source noteuspto-grants-2002_12