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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2192917Generated: November 2, 2026

Potassium Carbonate → 1-(5-Aminopyrazin-2-yl)ethanol

https://huagongshe.com/reaction/2192917

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
ReactantN-[5-(1-hydroxyethyl)pyrazin-2-yl]-2,2-dimethylpropanamideHCID 59571026—
SolventMethanolHCID 887—
SolventSodium chloride; waterHCID 57417360—
Product1-(5-Aminopyrazin-2-yl)ethanolHCID 5528401176.2%

Reaction Steps

To a solution of N-[5-(1-hydroxyethyl)pyrazin-2-yl]-2,2-dimethylpropanamide (394 mg) in methanol (10 mL) was added potassium carbonate (249 mg) at room temperature, followed by stirring at room temperature overnight and stirring at 60° C. for 5 hours. Further, potassium carbonate (249 mg) was added thereto, followed by stirring at 60° C. for 3 hours. After leaving it to be cooled to room temperature, saturated brine was added to the reaction mixture, followed by extraction with a solvent (chloroform:isopropyl alcohol=4:1). The organic layer was dried over anhydrous magnesium sulfate and concentrated. The obtained solid was collected by filtration while washing with a solvent (hexane:diisopropyl ether=1:1), to obtain 1-(5-aminopyrazin-2-yl)ethanol (187 mg) as a pale yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08329707B2
Source datasetuspto-grants-2012_12
ORD IDord-e78e588916db456aa5a5293e6830f8e6
Source noteuspto-grants-2012_12