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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2235236Generated: October 30, 2026

Phosphorus tribromide → 2-Bromomethyl-1,3-dichloro-5-benzyloxy-benzene

https://huagongshe.com/reaction/2235236

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhosphorus tribromideHCID 24614—
Reactant(4-Benzyloxy-2,6-dichloro-phenyl)methanolHCID 66621751—
SolventTetrahydrofuranHCID 8028—
Product2-Bromomethyl-1,3-dichloro-5-benzyloxy-benzeneHCID 5929942889%

Reaction Conditions

Temperature0 °C

Reaction Steps

Dissolve (4-benzyloxy-2,6-dichloro-phenyl)-methanol in 2.5 L THF and cool to 0° C. under N2. Add 94.45 g PBr3 dropwise and stir at 0° C. for 30 minutes. Pour the reaction mixture into sat'd. NaHCO3 and extract with EtOAc (2×). Dry over Na2SO4, filter and concentrate under vacuum to yield 269 g (89%) of the title compound as a white solid. MS (electrospray), 345.1, 347.1 (ES−).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07713979B2
Source datasetuspto-grants-2010_05
ORD IDord-ec8433d0ea704be6afd9d70fa6573d8d
Source noteuspto-grants-2010_05