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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 324392Generated: October 25, 2026

Water → 5-Bromo-2,4-bis(1,1-dimethylethoxy)pyrimidine

https://huagongshe.com/reaction/324392

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
Reactant5-Bromo-2,4-dichloropyrimidineHCID 289973—
ReactantPotassium tert-butoxideHCID 23665647—
SolventTetrahydrofuranHCID 8028—
Product5-Bromo-2,4-bis(1,1-dimethylethoxy)pyrimidineHCID 818851—

Reaction Steps

To a solution of potassium tert-butoxide (67.5 g) in tetrahydrofuran (500 ml) was added 5-bromo-2,4-dichloropyrimidine (55 g) (J. Am. Chem. Soc., 1934, 56, 134) in tetrahydrofuran (100 ml) dropwise. After 1.5 hours water (100 ml) was added carefully and the mixture extracted with ethyl acetate. The combined organic solution was washed with water, dried (MgSO4) and evaporated under reduced pressure. Purification was by chromatography eluting with isohexane containing 1% triethylamine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06218376B1
Source datasetuspto-grants-2001_04
ORD IDord-2fa5f3caf1ce486d911a5439d93c7e09
Source noteuspto-grants-2001_04