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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 414369Generated: October 26, 2026

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

https://huagongshe.com/reaction/414369

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 numberUS04791225
Source datasetuspto-grants-1988_12
ORD IDord-18d29e282d0a4a95baf47415037746ea
Source noteuspto-grants-1988_12