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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 249092Generated: October 29, 2026

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

https://huagongshe.com/reaction/249092

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 numberUS05212315
Source datasetuspto-grants-1993_05
ORD IDord-397dd33bcf0a43d7a84259bbee9d8b9c
Source noteuspto-grants-1993_05