Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2405076Generated: October 26, 2026

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

https://huagongshe.com/reaction/2405076

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 numberUS08802865B2
Source datasetuspto-grants-2014_08
ORD IDord-86c6e423292b4705a63aa15eb1983f58
Source noteuspto-grants-2014_08