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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 243865Generated: October 25, 2026

Urea → HCID 178518523, compound

https://huagongshe.com/reaction/243865

Reaction equation

Participants

RoleNameHCIDCharge
ReactantUreaHCID 1176—
ReactantDiethyl fluoromalonateHCID 12702—
ReactantSodium ethoxideHCID 2723922—
SolventEthanolHCID 702—
ProductHCID 178518523HCID 178518523—

Reaction Steps

To a heterogeneous mixture of urea (641 mg, 10.67 mmol) and diethylfluoromalonate (1.96 g, 10.67 mmol) in EtOH (11 mL) was added 2.68 M NaOEt in EtOH (7.96 mL, 21.34 mmol). The mixture was heated at reflux for 60 h and then allowed to cool to room temperature. The mixture was filtered and the cake was then dissolved in warm water and the resulting solution was acidified with concentrated HCl to pH 2. The mixture was allowed to cool to room temperature and then cooled in an ice bath before filtering. The cake was washed with water and dried to afford 5-fluoropyrimidine-2,4,6-triol as a slightly off white solid (1.45 g, 93%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08653263B2
Source datasetuspto-grants-2014_02
ORD IDord-705568b17178453dac59d6f41cc418a4
Source noteuspto-grants-2014_02