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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1655985Generated: October 30, 2026

Water → HCID 19789825, compound

https://huagongshe.com/reaction/1655985

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantSodium hydrideHCID 24758—
Reactant2,3-Dichloro-5-(trifluoromethyl)pyridineHCID 112234—
ReactantHCID 591632HCID 591632—
SolventDimethylformamideHCID 6228—
ProductHCID 19789825HCID 1978982550.7%

Reaction Steps

To a solution of 0.50 g (3 m mol) of 5-methyl-4-trifluoromethylimidazole in 5 ml of N,N-dimethyl formamide was added slowly 133 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 0.62 g (3 m mol) of 2,3-dichloro-5-trifluoromethylpyridine, followed by stirring at room temperature for 8 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 0.48 g of 1-(3-chloro-5-trifluoromethylpyridin-2-yl)-5-methyl-4-trifluoromethylimidazole.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05252590
Source datasetuspto-grants-1993_10
ORD IDord-fd9ae4dcc6c0439d850373aef6a6e5a2
Source noteuspto-grants-1993_10