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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1455494Generated: November 2, 2026

Oxalyl chloride → 5-Bromo-3-chloro-2,4-difluorobenzoyl chloride

https://huagongshe.com/reaction/1455494

Reaction equation

Participants

RoleNameHCIDCharge
ReactantOxalyl chlorideHCID 65578—
ReactantHCID 12010428HCID 12010428—
CatalystDimethylformamideHCID 6228—
SolventDichloromethaneHCID 6344—
Product5-Bromo-3-chloro-2,4-difluorobenzoyl chlorideHCID 22474757—

Reaction Steps

A quantity of 5.2 g of 5-bromo-3-chloro-2,4-difluorobenzoic acid is suspended in 30 ml of dichloromethane; then 2.92 g of oxalyl chloride is added, and 3 drops of dry DMF are added. The mixture is stirred at room temperature for 3 hours and the desired compound is isolated after evaporation of the solvent.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07482454B2
Source datasetuspto-grants-2009_01
ORD IDord-1211192ae1664e70b448c923ed19f2dc
Source noteuspto-grants-2009_01