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
Participants
| Role | Name | HCID | Charge |
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| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | N-[5-(1-hydroxyethyl)pyrazin-2-yl]-2,2-dimethylpropanamide | HCID 59571026 | — |
| Solvent | Methanol | HCID 887 | — |
| Solvent | Sodium chloride; water | HCID 57417360 | — |
| Product | 1-(5-Aminopyrazin-2-yl)ethanol | HCID 55284011 | 76.2% |
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
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08329707B2 |
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| Source dataset | uspto-grants-2012_12 |
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| ORD ID | ord-e78e588916db456aa5a5293e6830f8e6 |
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| Source note | uspto-grants-2012_12 |
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