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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2273301Generated: October 26, 2026

Potassium Carbonate → 5,6-Dichloro-2-(2-trifluoromethyl-oxazolidin-2-yl)-1H-benzimidazole

https://huagongshe.com/reaction/2273301

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant2-Bromoethylamine hydrobromideHCID 2774217—
Reactant1-(5,6-dichloro-1H-benzoimidazol-2-yl)-2,2,2-trifluoro-ethanoneHCID 11594370—
SolventDimethylformamideHCID 6228—
SolventEthyl AcetateHCID 8857—
Product5,6-Dichloro-2-(2-trifluoromethyl-oxazolidin-2-yl)-1H-benzimidazoleHCID 58333166—

Reaction Steps

1-(5,6-DiChloro-1H-benzoimidazol-2-yl)-2,2,2-trifluoro-ethanone (594 mg), 2-bromoethylamine-hydrobromide (860 mg) and potassium carbonate (871 mg) were dissolved in DMF (5 mL). The reaction mixture was stirred for 18 hrs at ambient temperature, then diluted with ethyl acetate (50 mL), washed with water (50 mL) and brine (2×20 mL). The extracts were dried over Na2SO4, filtered, concentrated, and purified by column chromatography (SiO2; 40% ethyl acetate/hexanes) to yield the title compound as a yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09120830B2
Source datasetuspto-grants-2015_09
ORD IDord-d011aad0429f4f5d848c8bbf7673881c
Source noteuspto-grants-2015_09