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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2095850Generated: October 31, 2026

Hydrochloric Acid → HCID 58158523, compound

https://huagongshe.com/reaction/2095850

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 58158591HCID 58158591—
SolventMethanolHCID 887—
ProductHCID 58158523HCID 5815852368%

Reaction Steps

To a solution of ethyl 1-(4-fluorophenyl)-5-methyl-2-oxo-1,2-dihydropyridine-3-carboxylate (1.2 g, 4.36 mmol) in methanol (12 mL) was added 1N aqueous sodium hydroxide solution (10 mL, 10 mmol), and the mixture was stirred at room temperature for 2 hr. The reaction mixture was concentrated, and the obtained residue was diluted with ethyl acetate and water and extracted with water. The aqueous layer was treated with 1N hydrochloric acid (20 mL, 20 mmol), and the precipitate was collected by filtration to give a white solid. The white solid was washed with water to give the title compound (730 mg, 68%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08445509B2
Source datasetuspto-grants-2013_05
ORD IDord-67733542ceff469aac91e04fcd092e40
Source noteuspto-grants-2013_05