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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1430212Generated: November 3, 2026

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

https://huagongshe.com/reaction/1430212

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 numberUS08940737B2
Source datasetuspto-grants-2015_01
ORD IDord-019991d13430442e904867e8ead60087
Source noteuspto-grants-2015_01