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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 12744Generated: October 26, 2026

Hydrochloric Acid → 5-Pyrazin-2-yl-1H-pyrimidine-2,4-dione hydrochloride

https://huagongshe.com/reaction/12744

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant2,4-Dimethoxy-5-pyrazin-2-yl-pyrimidineHCID 58994206—
Solvent1,4-DioxaneHCID 31275—
Product5-Pyrazin-2-yl-1H-pyrimidine-2,4-dione hydrochlorideHCID 68696929—

Reaction Steps

2,4-Dimethoxy-5-pyrazin-2-yl-pyrimidine (Prep124, 481 mg, 2.19 mmol) was dissolved in 4M HCl in dioxane solution (7 ml). After refluxing the reaction mixture for 1 hour, the solvent was removed under vacuum to give the title compound (quantitative yield)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07727988B2
Source datasetuspto-grants-2010_06
ORD IDord-acd790e96df7459bb8e6de5a9519bbe7
Source noteuspto-grants-2010_06