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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1879225Generated: October 31, 2026

Potassium Carbonate → HCID 68492755, compound

https://huagongshe.com/reaction/1879225

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant4-Fluorophenethyl bromideHCID 573153—
Reactant3-Iodo-5-methyl-1H-pyrazoleHCID 14573935—
SolventDimethyl SulfoxideHCID 679—
SolventEthyl AcetateHCID 8857—
ProductHCID 68492755HCID 68492755—

Reaction Conditions

Temperature95 °C

Reaction Steps

A solution of 3-iodo-5-methyl-1H-pyrazole (1.45 g, 6.97 mmol) in dimethyl sulfoxide (10 mL) was treated with 1-(2-bromo-ethyl)-4-fluoro-benzene (1.41 g, 6.97 mmol) and potassium carbonate (2.89 g, 20.91 mmol), and the reaction mixture was heated to 95° C. for 16 hr. The reaction mixture was cooled to room temperature, diluted with ethyl acetate (100 mL), and washed with brine (2×100 mL). The organic phase was dried (Na2SO4) and evaporated. The residue was purified by preparative thin layer chromatography over silica gel (hexanes:ethyl acetate, 1:1) to provide 1-[2-(4-fluoro-phenyl)-ethyl]-3-iodo-5-methyl-1H-pyrazole as a yellow oil. MS (M+H)+=331.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08314138B2
Source datasetuspto-grants-2012_11
ORD IDord-590190abc5ad4c68bec69ba49e62e532
Source noteuspto-grants-2012_11