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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 231879Generated: October 30, 2026

Pyridine → 1,2-Dihydro-5-[1-(Methoxyimino)ethyl]-6-Methyl-2-oxo-3-pyridinecarbonitrile

https://huagongshe.com/reaction/231879

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantO-Methylhydroxylamine hydrochlorideHCID 521874—
Reactant5-acetyl-6-methyl-2(1H)-pyridinoneHCID 4421736—
SolventEthanolHCID 702—
Product1,2-Dihydro-5-[1-(Methoxyimino)ethyl]-6-Methyl-2-oxo-3-pyridinecarbonitrileHCID 136342780—

Reaction Steps

A mixture of 5-acetyl-6-methyl-2(1H)pyridinone (1.76 g, 0.010 mol), methoxyamine hydrochloride (0.90 g, 0.107 mol) and pyridine (5.0 ml) were heated and stirred in EtOH (150 ml) at reflux. The initially heterogeneous mixture cleared as everything went into solution. At the end of 2 hours a solid precipitated. The reaction mixture was allowed to cool to room temperature and the solid was collected by filtration. Recrystallization (EtOH) gave 0.70 g (35%) m.pt. 275°-285° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04849522
Source datasetuspto-grants-1989_07
ORD IDord-311d57fa1c104a988f23843c7b60d96d
Source noteuspto-grants-1989_07