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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1075141Generated: November 1, 2026

Pyrimidine → HCID 20494282, compound

https://huagongshe.com/reaction/1075141

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyrimidineHCID 9260—
Reactant2-BromoethanolHCID 10898—
ReactantPotassium HydroxideHCID 14797—
Reactant5-Fluoropyrimidin-2-oneHCID 101498—
SolventEthanolHCID 702—
ProductHCID 20494282HCID 2049428250%

Reaction Steps

5-Fluoropyrimid-2-one (0.008 mol) was dissolved in a solution of potassium hydroxide (0.008 mol) in absolute ethanol (100 ml) at 80° C. and ethylene bromohydrin (0.008 mol) added gradually with stirring. The alkylation was incomplete when the pH had become neutral. The reaction was further monitored by chromatography and equivalent amounts of potassium hydroxide and ethylene bromohydrin added until all the pyrimidine had been alkylated. The reaction mixture was then filtered and the filtrate evaporated to dryness before the residue was triturated with ether and extracted with warm acetone. Evaporation of the acetone solution left the title compound in 50% yield, m.p. 134°-136° C. after recrystallisation from ethanol; Found: C, 45.83; H, 4.42; Calc. for C6H7FN2O2 : C, 45.58; H, 4.46.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04395406
Source datasetuspto-grants-1983_07
ORD IDord-dd52ad978929436b89845b0cb535645d
Source noteuspto-grants-1983_07