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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2095867Generated: October 31, 2026

Hydrochloric Acid → HCID 58158515, compound

https://huagongshe.com/reaction/2095867

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 66968619HCID 66968619—
SolventMethanolHCID 887—
ProductHCID 58158515HCID 58158515186.1%

Reaction Steps

To a suspension of methyl 1-(4-fluoro-2-methylphenyl)-2-oxo-1,2-dihydropyridine-3-carboxylate (0.40 g, 1.53 mmol) in methanol (9 mL) was added 2N aqueous sodium hydroxide solution (1.15 mL), and the mixture was stirred at room temperature for 3 hr. 6N Hydrochloric acid (0.5 mL) was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate and filtered. The solvent was evaporated under reduced pressure, and the obtained residue was washed with hexane/ethyl acetate (=1/1) to give the title compound (704 mg, 85%) as a yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08445509B2
Source datasetuspto-grants-2013_05
ORD IDord-68e5b12868324109b740fe3bff82cf23
Source noteuspto-grants-2013_05