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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1042073Generated: October 31, 2026

3-Oxopentanenitrile → 5-Ethyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-amine

https://huagongshe.com/reaction/1042073

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-OxopentanenitrileHCID 9920369—
ReactantHCID 178418311HCID 178418311—
SolventAcetic AcidHCID 176—
Product5-Ethyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-amineHCID 6674253512%

Reaction Conditions

Temperature150 °C

Reaction Steps

A mixture of 3-oxopentanenitrile (1.0 g, 10.3 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 upon standing at room temperature, and the solid was collected via filtration to give the title compound (200 mg, 12% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08557828B2
Source datasetuspto-grants-2013_10
ORD IDord-683cdf2c034c415a956c712c2a4b91ec
Source noteuspto-grants-2013_10