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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 662019Generated: October 25, 2026

Dimethylformamide → 2-Bromo-4-methylbenzamide

https://huagongshe.com/reaction/662019

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
Reactant2-Bromo-4-methylbenzoic acidHCID 226292—
SolventTolueneHCID 1140—
SolventThionyl ChlorideHCID 24386—
Product2-Bromo-4-methylbenzamideHCID 26234099%

Reaction Conditions

Temperature50 °C

Reaction Steps

To a suspension of 2-bromo-4-methylbenzoic acid (15.0 g, 69.8 mmol) in toluene (60 mL), thionyl chloride (10.3 mL) and DMF (0.10 mL) were added and stirred at 50° C. for 3 h. After cooling to room temperature, the excess thionyl chloride was removed in vacuo. The residue was dissolved in toluene (50 mL), and the mixture was added to the solution of ammonia (25%, 60 mL). The white precipitate was filtered over Celite and dried in vacuo to afford 2-bromo-4-methylbenzamide (14.8 g, 99%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08084449B2
Source datasetuspto-grants-2011_12
ORD IDord-5368abd18b004492846f479fd4b79fd8
Source noteuspto-grants-2011_12