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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1881524Generated: October 27, 2026

Hydrogen Bromide → (3,4-Dimethylphenyl)(oxo)acetaldehyde

https://huagongshe.com/reaction/1881524

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen BromideHCID 260—
ReactantWaterHCID 962—
Reactant3,4-DimethylacetophenoneHCID 77193—
SolventDimethyl SulfoxideHCID 679—
Product(3,4-Dimethylphenyl)(oxo)acetaldehydeHCID 1271222357%

Reaction Conditions

Temperature70 °C

Reaction Steps

3,4-dimethylacetophenone (13.52 mmol, 2.0 g) was dissolved in dimethyl sulfoxide (13 mL), and 48% hydrobromic acid (5.4 mL) was gradually added at room temperature. After 16 hours of stirring at 70° C., the reactor was cooled to room temperature. The reaction solution was poured into water and stirred for about 16 hours. The precipitated solid was recovered by filtration, washed with water and dried by means of a vacuum pump to give the desired product as a white solid (1.234 g, yield 57%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08318796B2
Source datasetuspto-grants-2012_11
ORD IDord-2ad7b1c21e554bf298d378b11a3ea503
Source noteuspto-grants-2012_11