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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2206542Generated: October 25, 2026

Phosphorus tribromide → 1-(1-Bromoethyl)-3-methylbenzene

https://huagongshe.com/reaction/2206542

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhosphorus tribromideHCID 24614—
Reactant1-(3-Methylphenyl)ethanolHCID 110952—
Product1-(1-Bromoethyl)-3-methylbenzeneHCID 2300091691.3%

Reaction Steps

Phosphorus tribromide (4.28 g, 15.9 mmol) was added drop-wise to a stirred neat solution of 1-(m-tolyl)ethanol (0.9 g, 6.6 mmol) at 0° C. After being stirred to room temperature over 12 h, the reaction was carefully quenched with sat'd saturated aqueous NaHCO3 solution and the mixture was extracted with EtOAc. The organic extract was washed with water, dried with MgSO4, and conc. in vacuo to afford the title compound (1.2 g, 91%) as a colorless oil, that was used directly in the next step without further purification. LCMS 200 (M+H+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09371331B2
Source datasetuspto-grants-2016_06
ORD IDord-c35aa29ec8ad4d20905cedd6519d2cca
Source noteuspto-grants-2016_06