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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1370115Generated: November 1, 2026

Carbon tetrabromide → 2-Methoxyphenethyl bromide

https://huagongshe.com/reaction/1370115

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCarbon tetrabromideHCID 11205—
ReactantTriphenylphosphineHCID 11776—
Reactant2-Methoxyphenethyl alcoholHCID 81909—
SolventDichloromethaneHCID 6344—
Product2-Methoxyphenethyl bromideHCID 57819993.5%

Reaction Conditions

Temperature0 °C

Reaction Steps

A mixture of 2-methoxyphenethyl alcohol (500 mg) and carbon tetrabromide (1.53 g) in anhydrous dichloromethane (10 mL) was stirred at 0° C. under a nitrogen atmosphere. After adding triphenylphosphine (1.03 g) portionwise, the reaction mixture was stirred for an hour under the same condition. The reaction mixture was evaporated in vacuo and the residue was subjected to a silica gel column chromatography eluting with n-hexane only and then a mixture of n-hexane and ethyl acetate (40:1 to 20:1) to give 2-methoxyphenethyl bromide (661 mg) as an oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06582351B1
Source datasetuspto-grants-2003_06
ORD IDord-3c6b7c184f2446658afad0c863a096b9
Source noteuspto-grants-2003_06