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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1778821Generated: October 30, 2026

Phosphorus tribromide → 1-(Benzyloxy)-4-(bromomethyl)benzene

https://huagongshe.com/reaction/1778821

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhosphorus tribromideHCID 24614—
Reactant(4-(Benzyloxy)phenyl)methanolHCID 70043—
ReactantLithium BromideHCID 82050—
SolventDimethylformamideHCID 6228—
Product1-(Benzyloxy)-4-(bromomethyl)benzeneHCID 10492756—

Reaction Conditions

Temperature0 °C

Reaction Steps

A mixture of (4-(benzyloxy)phenyl)methanol (2.14 g) and lithium bromide (1.0 g) in N,N-dimethylformamide (20 mL) was cooled to 0° C. To this solution was added PBr3 (1.0 mL). The solution was stirred at room temperature for 2 hours. The reaction mixture was partitioned between water and ethyl acetate. The aqueous layer was extracted with additional ethyl acetate, twice. The combined organic layers were washed with brine, dried over MgSO4, filtered, and concentrated. The residue was purified by flash column chromatography on silica gel eluting with 5% ethyl acetate in hexanes to provide the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09266877B2
Source datasetuspto-grants-2016_02
ORD IDord-7abef21612b549c88f0b916373e40b71
Source noteuspto-grants-2016_02