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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 249730Generated: October 30, 2026

Ethanol → HCID 178469038, compound

https://huagongshe.com/reaction/249730

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantSulfuric AcidHCID 1118—
Reactant6-Methyl-2-oxo-1,2-dihydropyridine-4-carboxylic acidHCID 178427244—
SolventSodium BicarbonateHCID 516892—
ProductHCID 178469038HCID 178469038—

Reaction Steps

20.0 g (130.6 mmol) of 2-hydroxy-6-methylisonicotinic acid were dissolved in 200 ml of ethanol and treated with 20 ml of concentrated H2SO4. After the reaction mixture had been refluxed for two hours, it was freed from the solvent. The residue was taken up in saturated NaHCO3 solution and extracted three times with DCM. The combined organic phases were dried with Na2SO4 and concentrated, 20.1 g of the title compound being isolated.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07863269B2
Source datasetuspto-grants-2011_01
ORD IDord-1689bbf0d5984fc699c285d9a9a10ff0
Source noteuspto-grants-2011_01