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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2235194Generated: November 1, 2026

Phosphorus tribromide → Benzene, 2-(bromomethyl)-1,3-dichloro-5-(trifluoromethyl)-

https://huagongshe.com/reaction/2235194

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhosphorus tribromideHCID 24614—
ReactantSodium BicarbonateHCID 516892—
Reactant(2,6-Dichloro-4-(trifluoromethyl)phenyl)methanolHCID 66652749—
SolventTetrahydrofuranHCID 8028—
ProductBenzene, 2-(bromomethyl)-1,3-dichloro-5-(trifluoromethyl)-HCID 22235045162.4%

Reaction Conditions

Temperature0 °C

Reaction Steps

Dissolve (2,6-dichloro-4-trifluoromethyl-phenyl)-methanol (7.5 g, 31 mmol) is THF (40 mL) and cool to 0° C. Add PBr3 (5.0 g, 18 mmol) under nitrogen and stir at 0° C. for 30 minutes. Pour into saturated aqueous sodium bicarbonate and extract with methylene chloride. Dry over sodium sulfate, filter and concentrate. Purify over silica gel (hexanes) to obtain 9.0 g (96%) of the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07713979B2
Source datasetuspto-grants-2010_05
ORD IDord-4e7d762e1f98408c9d5a2ce4a7da6463
Source noteuspto-grants-2010_05