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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 889164Generated: October 30, 2026

Water → HCID 20121074, compound

https://huagongshe.com/reaction/889164

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantEpibromohydrinHCID 18430—
ReactantSodium hydrideHCID 24758—
Reactant1,2,4-Triazolo(4,3-a)pyridin-3(2H)-oneHCID 81431—
SolventDimethylformamideHCID 6228—
SolventEthyl AcetateHCID 8857—
ProductHCID 20121074HCID 20121074—

Reaction Steps

After dissolving 2H-[1,2,4]triazolo[4,3-a]pyridin-3-one (CAS 6969-71-7) (1.0 g) and epibromohydrin (1.27 ml) in N,N-dimethylformamide (10 ml), sodium hydride (60% in oil) (326 mg) was added and the mixture was stirred at room temperature for 14 hours. Water was added to the reaction mixture, and extraction was performed with ethyl acetate. The organic layer was washed with water and brine in that order and then dried over anhydrous magnesium sulfate. After filtration, the solvent was distilled off under reduced pressure. The residue was purified by silica gel column chromatography. The obtained solid was washed with n-heptane to obtain the title compound (290 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08252810B2
Source datasetuspto-grants-2012_08
ORD IDord-57737475265f44e7b9fd620c3bb4479e
Source noteuspto-grants-2012_08