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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 227584Generated: October 26, 2026

Ethanol → Ethyl 3-Aminoisonicotinate

https://huagongshe.com/reaction/227584

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantSulfuric AcidHCID 1118—
ReactantAmmonium HydroxideHCID 14923—
Reactant3-Aminoisonicotinic acidHCID 459531—
ProductEthyl 3-AminoisonicotinateHCID 273636587%

Reaction Steps

To a solution of 1 g (7.25 mmol) of 3-amino-4-pyridinecarboxylic acid in 5 mL of ethyl alcohol was added 2 mL of sulfuric acid. The mixture was warmed under reflux for 2 h. It was cooled and basified with conc. NH4OH solution to pH=8. The resulting solution was extracted with ethyl acetate and the organic layer was washed with brine and water, dried (MgSO4) and concentrated in vacuo to give 1.04 g of the title compound as a white solid (87%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07560564B2
Source datasetuspto-grants-2009_07
ORD IDord-67d96eb2975649e3885db6bf1f096cfe
Source noteuspto-grants-2009_07