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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1394481Generated: October 27, 2026

Potassium Carbonate → 5,6-Dichloro-1-Pyridin-3-ylmethyl-2-(2,2,2-trifluoro-ethyl)-1H-benzoimidazole

https://huagongshe.com/reaction/1394481

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant5,6-dichloro-2-(2,2,2-trifluoro-ethyl)-1H-benzimidazoleHCID 11651910—
Reactant3-(Bromomethyl)pyridine hydrobromideHCID 12707037—
SolventDimethylformamideHCID 6228—
Product5,6-Dichloro-1-Pyridin-3-ylmethyl-2-(2,2,2-trifluoro-ethyl)-1H-benzoimidazoleHCID 59682315—

Reaction Steps

To 5,6-dichloro-2-(2,2,2-trifluoro-ethyl)-1H-benzimidazole (423 mg) in DMF (5 mL) was added potassium carbonate powder (868 mg) and 3-(bromomethyl)pyridine hydrogen bromide (615 mg). The resulting mixture was stirred at room temperature overnight. The reaction mixture was quenched with water, extracted with EtOAc, and dried over Na2SO4. The crude product was purified by silica gel chromatography (15%-60% EtOAc/hexanes) to yield the title compound as a green solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07348438B2
Source datasetuspto-grants-2008_03
ORD IDord-56572f1804164761a9bedbb081e463ad
Source noteuspto-grants-2008_03