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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1013807Generated: November 2, 2026

Phosphorus tribromide → 5-(Benzyloxy)-2-(bromomethyl)-1,3-dimethylbenzene

https://huagongshe.com/reaction/1013807

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhosphorus tribromideHCID 24614—
Reactant(4-(Benzyloxy)-2,6-dimethylphenyl)methanolHCID 67317571—
SolventTetrahydrofuranHCID 8028—
Product5-(Benzyloxy)-2-(bromomethyl)-1,3-dimethylbenzeneHCID 11426700247.5%

Reaction Steps

Cool a solution of (4-Benzyloxy-2,6-dimethyl-phenyl)-methanol (5.70 g, 24 mmol) in THF (100 mL) to 0° C. Treat the solution with Phosphorous tribromide (0.9 mL, 9.4 mmol) and stir the reaction for 2 hr at 0° C. Quench the reaction with water and extract with Et2O. Wash the organic with brine, dry over MgSO4, and filter. Remove the solvent to afford 7.1 g (99%) of product. 1H NMR (d6-CDCl3) δ 7.31-7.43 (m, 5H), 6.65 (s, 2H), 5.01 (s, 2H), 4.56 (s, 2H), 2.38 (s, 6H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07981918B2
Source datasetuspto-grants-2011_07
ORD IDord-65e8a7db406c4bd993831213a1943845
Source noteuspto-grants-2011_07