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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1655984Generated: November 1, 2026

Water → HCID 19789829, compound

https://huagongshe.com/reaction/1655984

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantSodium hydrideHCID 24758—
Reactant2,3-Dichloro-5-(trifluoromethyl)pyridineHCID 112234—
ReactantHCID 19789824HCID 19789824—
SolventDimethylformamideHCID 6228—
ProductHCID 19789829HCID 1978982943.9%

Reaction Steps

To a solution of 0.6 g (3 m mol) of 5-methyl-4-pentafluoroethylimidazole in 5 ml of N,N-dimethyl formamide was added slowly 120 mg (3 m mol) of an oily sodium hydride (60%) while cooling with ice, followed by stirring at the same temperature for 10 minutes. After the reaction was completed, to the reaction mixture was added dropwise 0.65 g (3 m mol) of 2,3-dichloro-5-trifluoromethylpyridine, followed by stirring at room temperature for 9 hours. After the reaction was completed, the reaction mixture was poured into water, and extracted with ethyl acetate. Further, then the residue was washed with brine, dried over magnesium sulfate, and concentrated under reduced pressure. The residue was subjected to silica gel chromatography to give 0.5 g of 1-(3-chloro-5-trifluoromethylpyridin-2-yl)-5-methyl-4-pentafluoroethylimidazole.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05252590
Source datasetuspto-grants-1993_10
ORD IDord-1e0eedfd9f5a451a889ae3d5aae7520b
Source noteuspto-grants-1993_10