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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 657317Generated: October 26, 2026

Dimethylformamide → 2-Bromo-4-methylbenzamide

https://huagongshe.com/reaction/657317

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 numberUS08071588B2
Source datasetuspto-grants-2011_12
ORD IDord-46a2cb238e6d4baca3a6f85a64244329
Source noteuspto-grants-2011_12