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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1383887Generated: November 2, 2026

Water → 1-Bromo-3,5-bis(trifluoromethyl)benzene

https://huagongshe.com/reaction/1383887

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
Reactant1,3-Dibromo-5,5-dimethylhydantoinHCID 6479—
ReactantBenzene, 1,3-bis(trifluoromethyl)-HCID 223106—
SolventAcetic acid sulfuric acidHCID 23350293—
Product1-Bromo-3,5-bis(trifluoromethyl)benzeneHCID 67602—

Reaction Steps

In a preferred embodiment, 1,3-bis(trifluoromethyl)benzene is brominated with N,N′-dibromo-5,5-dimethylhydantoin in sulfuric acid/acetic acid at 45° C. The reaction mixture is then diluted into cold water, and the phases are separated, washed with aqueous sodium hydroxide (preferably 5 N sodium hydroxide) and allowed to separate to produce 3,5-bis(trifluoromethyl)bromobenzene.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06255545B1
Source datasetuspto-grants-2001_07
ORD IDord-369bc9ee89f04024abfda206967fb516
Source noteuspto-grants-2001_07