Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2269206Generated: October 31, 2026

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

https://huagongshe.com/reaction/2269206

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 numberUS06329391B1
Source datasetuspto-grants-2001_12
ORD IDord-52210b12637c47c18436beba4d1639fe
Source noteuspto-grants-2001_12