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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 249084Generated: October 29, 2026

Sulfuric Acid → 5-Acetyl-6-methyl-2-oxo-1,2-dihydropyridine-3-carboxamide

https://huagongshe.com/reaction/249084

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
Reactant5-Acetyl-2-hydroxy-6-methylnicotinonitrileHCID 2765476—
Product5-Acetyl-6-methyl-2-oxo-1,2-dihydropyridine-3-carboxamideHCID 2764417—

Reaction Conditions

Temperature60 °C

Reaction Steps

To 100 grams of concentrated sulfuric acid is added 10 g (0.056 mole) of 5-acetyl-1,2-dihydro-6-methyl2-oxo-3-pyridinecarbonitrile. The mixture is stirred at 60° C. for 5 hours, cooled and then poured on 1 kg ice. The resulting solid is collected, washed with water and recrystallized from ethanol to give the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05212314
Source datasetuspto-grants-1993_05
ORD IDord-9a931bb715594d5fb802a2e3d32f45a5
Source noteuspto-grants-1993_05