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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1366385Generated: October 31, 2026

Hydrochloric Acid → HCID 178517794, compound

https://huagongshe.com/reaction/1366385

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantDimethyl fluoromalonateHCID 2737111—
ReactantHCID 26597148HCID 26597148—
ProductHCID 178517794HCID 17851779461%

Reaction Conditions

Temperature80 °C

Reaction Steps

Sodium metal (0.91 g, 40 mmol) was dissolved in MeOH (100 mL) to form sodium methoxide. 2,2-Difluoroethanimidamide.HCl (1.73 g, 13 mmol) was added followed by dimethyl fluoropropanedioate (2.0 g, 13 mmol). The resulting solution was stirred at 80° C. for 3 hours, then cooled to room temperature. Aqueous HCl (6 mL, 6M, 36 mmol) was added and the resulting mixture was concentrated in vacuo. The remaining solid was washed with cold water and filtered yielding 2-(difluoromethyl)-5-fluoro-6-hydroxy-4(1H)-pyrimidinone (1.43 g, 61%)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07893056B2
Source datasetuspto-grants-2011_02
ORD IDord-8f306e572cce46809c6ade0901ae883b
Source noteuspto-grants-2011_02