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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 496197Generated: October 25, 2026

Cesium carbonate → HCID 22313755, compound

https://huagongshe.com/reaction/496197

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCesium carbonateHCID 10796—
ReactantEpibromohydrinHCID 18430—
Reactant(5-Chloro-2-hydroxy-phenyl)-ureaHCID 11435385—
SolventDimethylformamideHCID 6228—
ProductHCID 22313755HCID 2231375526.5%

Reaction Steps

A suspension of N-(5-chloro-2-hydroxyphenyl)urea (53 mg, 0.28 mmol), cesium carbonate (92 mg, 0.28 mmol) and epibromohydrine (49 mg, 0.36 mmol) in dry DMF (0.6 mL) was stirred at room temperature for 24 hours. The mixture was then partitioned between ethyl acetate and water. The organic phase was washed with water three times, dried and concentrated to a solid residue. This crude product was recrystallized (ethyl ether and heptane to afford the subtitle compound (18 mg, 26.5%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06943188B2
Source datasetuspto-grants-2005_09
ORD IDord-40ba8e49be0d496ba4ef055d9208886f
Source noteuspto-grants-2005_09