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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 230439Generated: October 30, 2026

Water → HCID 72357161, compound

https://huagongshe.com/reaction/230439

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantPyridineHCID 1049—
ReactantHydroxyamine hydrochlorideHCID 443297—
ReactantHCID 44430223HCID 44430223—
SolventEthanolHCID 702—
ProductHCID 72357161HCID 72357161—

Reaction Steps

1-[5,6-Dichloro-2-(2,2,2-trifluoro-ethyl)-benzoimidazol-1-yl]-butan-2-one (339 mg, 1 mmol), hydroxylamine hydrochloride (227.5 mg, 3.25 mmol) and pyridine (3 mL) in ethanol (3 mL) were heated to 70° C. for 5 hours. The reaction mixture was then poured into water and extracted with EtOAc. The organic layer was washed with 15% NaCl, brine, then dried over anhydrous MgSO4. The solvent was distilled out under reduced pressure. Column chromatography (silica gel, EtOAc/hexanes (0% to 60%) yielded the title compound as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07566733B2
Source datasetuspto-grants-2009_07
ORD IDord-6c8dda47a51440ef9261c60a3e7b0f6d
Source noteuspto-grants-2009_07