Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1783597Generated: October 26, 2026

Bromine → 1-Benzyluracil

https://huagongshe.com/reaction/1783597

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBromineHCID 24408—
Reactant1-Benzyl-5-bromo-1,2,3,4-tetrahydropyrimidine-2,4-dioneHCID 5276659—
SolventDimethyl SulfoxideHCID 679—
SolventDimethylformamideHCID 6228—
Product1-BenzyluracilHCID 237962—

Reaction Steps

This experiment was performed to verify the role of DMSO solvent in the generation of the bromine electrophile. Thus, this synthesis was done following the same procedure as for the synthesis of 1-benzyl-5-bromouracil, with the sole exception that DMSO was replaced by dimethylformamide (DMF), as solvent. Extraction was done by water-EtOAc and crystallization was done from EtOAc-Hexanes. After filtration, washing with hexanes and drying under high vacuum, 1.4 g of pure 1-benzyluracil, was isolated, as clean white crystals with properties shown below.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07501429B2
Source datasetuspto-grants-2009_03
ORD IDord-2279370aa0c2485cbfa231929bf5bf2b
Source noteuspto-grants-2009_03