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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 633719Generated: October 26, 2026

Hydrogen Bromide → 2-Bromo-1-(4-methylpyridin-3-yl)ethan-1-one hydrobromide

https://huagongshe.com/reaction/633719

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen BromideHCID 260—
ReactantDiethyl EtherHCID 3283—
ReactantBromineHCID 24408—
Reactant1-(4-Methyl-3-pyridinyl)ethanoneHCID 10942481—
SolventAcetic AcidHCID 176—
Product2-Bromo-1-(4-methylpyridin-3-yl)ethan-1-one hydrobromideHCID 2273099084%

Reaction Steps

300 mg (2.22 mmol) of 1-(4-methylpyrid-3-yl)ethanone are dissolved in 20 mL of glacial acetic acid. 730 μl (4.44 mmol) of hydrobromic acid and 126 μl (2.44 mmol) of bromine are added to the medium. The reaction mixture is placed under magnetic stirring at room temperature for 2 hours. Ethyl ether is added to the solution until a precipitate appears. The precipitate corresponding to 2-bromo-1-(4-methylpyrid-3-yl)ethanone hydrobromide is filtered off, washed with ethyl ether and dried. The 550 mg of product obtained have the following characteristics:

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09321790B2
Source datasetuspto-grants-2016_04
ORD IDord-35cb1b1a46f5401cab68b149d26b11c6
Source noteuspto-grants-2016_04