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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 230411Generated: October 27, 2026

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

https://huagongshe.com/reaction/230411

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 numberUS07566733B2
Source datasetuspto-grants-2009_07
ORD IDord-535c5c87dbc44feab81b9c5271f10f2d
Source noteuspto-grants-2009_07