Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2073955Generated: October 31, 2026

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

https://huagongshe.com/reaction/2073955

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 numberUS04920229
Source datasetuspto-grants-1990_04
ORD IDord-ad437ff26de6498a81a6312a346f5ff3
Source noteuspto-grants-1990_04