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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 345001Generated: October 26, 2026

Potassium Carbonate → 2-Ethyl-1-(2-nitro-5-fluorophenyl)-4-methyl-1H-imidazole

https://huagongshe.com/reaction/345001

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant2,4-DifluoronitrobenzeneHCID 67967—
ReactantHCID 178437635HCID 178437635—
SolventAcetonitrileHCID 6342—
Product2-Ethyl-1-(2-nitro-5-fluorophenyl)-4-methyl-1H-imidazoleHCID 15076555—

Reaction Steps

Combine 100 g of 2,4-difluoronitrobenzene, 69 g of 2-ethyl-4-methylimidazole and 100 g of K2CO3 in 700 mL of acetonitrile, and stir at room temperature for 4 days. Remove the solvent under vacuum. Slurry the residue in 300 mL of CH2Cl2 and chromatograph over 1 kg of silica gel using CH2Cl2. Combine the appropriate fractions and remove the solvent under vacuum. Crystallize the residue from pet ether to provide the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05055465
Source datasetuspto-grants-1991_10
ORD IDord-1a92986e04664143a75c129ce6cb4ef2
Source noteuspto-grants-1991_10