HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 657691Generated: October 29, 2026
3-oxopentanenitrile → 5-Ethyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-amine
https://huagongshe.com/reaction/657691
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | 3-oxopentanenitrile | HCID 9920369 | — |
| Reactant | HCID 178418311 | HCID 178418311 | — |
| Solvent | Acetic Acid | HCID 176 | — |
| Product | 5-Ethyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-amine | HCID 66742535 | 12% |
Reaction Steps
A mixture of 3-oxopentanenitrile (1.0 g, 103 mmol) and 3-amino-1,2,4-triazole (0.91 g, 10.8 mmol) in 10 mL of acetic acid was heated in a pressure tube at 150° C. for 24 h. The reaction mixture was allowed to cool to room temperature, and solvent was removed in vacuo. The solid was removed via filtration. The filtrate partially solidified upon standing at room temperature, and the solid was collected via filtration to give the title compound (200 mg, 12% yield).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08076344B2 |
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| Source dataset | uspto-grants-2011_12 |
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| ORD ID | ord-9a9b70386ce54331af3895e68c5efa7b |
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| Source note | uspto-grants-2011_12 |
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