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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1524924Generated: October 27, 2026

Urea → HCID 178518523, compound

https://huagongshe.com/reaction/1524924

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 numberUS09079911B2
Source datasetuspto-grants-2015_07
ORD IDord-bd3defd2b8a84b22909fd2e6c80a749e
Source noteuspto-grants-2015_07