Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2356750Generated: October 31, 2026

Ammonia → HCID 45120975, compound

https://huagongshe.com/reaction/2356750

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmoniaHCID 222—
ReactantAmmonium AcetateHCID 517165—
ReactantHCID 86593203HCID 86593203—
SolventAcetic AcidHCID 176—
ProductHCID 45120975HCID 4512097590.2%

Reaction Conditions

Temperature100 °C

Reaction Steps

A mixture of 2-formylamino-1-(3-pyridyl)-1-butanone (640 mg) and ammonium acetate (5.13 g) in acetic acid (5 ml) was stirred at 100° C. for 1.5 hours. After cooling, 28% aqueous ammonia was added to the reaction mixture and the mixture was extracted with chloroform. The organic layer was washed with brine, dried over anhydrous sodium sulfate and the solvent was removed under reduced pressure. The resulting residue was triturated with ethyl acetate-diethyl ether to obtain 5-ethyl-4-(3-pyridyl)imidazole (520 mg) as colorless powder.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07759373B2
Source datasetuspto-grants-2010_07
ORD IDord-951969bed7c842c3b29901f42e74bd09
Source noteuspto-grants-2010_07