Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1817147Generated: October 29, 2026

Ethylamine → N-Ethyl-3-nitropyridin-4-amine

https://huagongshe.com/reaction/1817147

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthylamineHCID 6341—
Reactant4-Methoxy-3-nitropyridine hydrochlorideHCID 355831—
SolventEthanolHCID 702—
SolventWaterHCID 962—
ProductN-Ethyl-3-nitropyridin-4-amineHCID 2193759796%

Reaction Steps

4-Methoxy-3-nitropyridine hydrochloride (11.2 g, 58.9 mmol) in ethanol (75 ml) was treated with a 70% solution of ethylamine in water (64 ml) and heated under reflux for 2 hours. After cooling to room temperature, the solvent was removed in vacuo and the residue dissolved in ethyl acetate and water. The mixture was extracted (×3) with ethyl acetate, washed with water and saturated aqueous sodium chloride solution before drying over magnesium sulfate. Evaporation of the solvent afforded the title compound (11.7 g, 96%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07598251B2
Source datasetuspto-grants-2009_10
ORD IDord-c98222fc8f0f467294076e546512ad1b
Source noteuspto-grants-2009_10