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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 497230Generated: October 26, 2026

Bromine → 2-Bromo-1-(4-bromo-2-methoxyphenyl)ethanone

https://huagongshe.com/reaction/497230

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBromineHCID 24408—
Reactant1-(4-Bromo-2-methoxyphenyl)ethan-1-oneHCID 11218448—
Solvent1,4-DioxaneHCID 31275—
Product2-Bromo-1-(4-bromo-2-methoxyphenyl)ethanoneHCID 2231677976.6%

Reaction Steps

To a stirred solution of 1-(4-bromo-2-methoxyphenyl)-1-ethanone (31.5 g, 138 mmol) in dioxane (32 ml) was added a solution of bromine (21.8 g, 136 mmol) in dioxane (123 ml), and the mixture was stirred for 3 hours. Then the volatile was evaporated in vacuo. The residue was recrystallized with hexane-dichloromethane to give title compound (32.1 g, 76% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06949536B2
Source datasetuspto-grants-2005_09
ORD IDord-5fe848f5fa13418990fdad3caa50b8f1
Source noteuspto-grants-2005_09