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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2232652Generated: October 26, 2026

Thionyl Chloride → 3-Bromo-2-chloro-4,5-difluorobenzoyl chloride

https://huagongshe.com/reaction/2232652

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThionyl ChlorideHCID 24386—
Reactant3-Bromo-2-chloro-4,5-difluorobenzoic acidHCID 9838347—
Product3-Bromo-2-chloro-4,5-difluorobenzoyl chlorideHCID 14071797—

Reaction Steps

A solution of 3-bromo-2-chloro-4,5-difluorobenzoic acid (9.0 g) in thionyl chloride (33 ml) was refluxed for 2.5 hours, and then concentrated. The resulting residue was purified by distillation to give the title compound (8.8 g), bp 109° C./22 mmHg.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04788320
Source datasetuspto-grants-1988_11
ORD IDord-43925deb0271466dafbc2cefc4bebbf7
Source noteuspto-grants-1988_11