Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2391751Generated: October 31, 2026

Thionyl Chloride → 4-Bromo-2-chlorobenzoyl chloride

https://huagongshe.com/reaction/2391751

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThionyl ChlorideHCID 24386—
Reactant4-Bromo-2-chlorobenzoic acidHCID 108829—
SolventDimethylformamideHCID 6228—
Product4-Bromo-2-chlorobenzoyl chlorideHCID 15592207—

Reaction Conditions

Temperature75 °C

Reaction Steps

To a mixture of 15 g of 4-bromo-2-chlorobenzoic acid in 25 ml DMF is added 10 ml thionyl chloride at room temperature and the reaction mixture is stirred for 16 h at 75° C. Excess of thionyl chloride is removed under reduced pressure to give 4-bromo-2-chlorobenzoyl chloride as crude material that is used for the next step without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08273890B2
Source datasetuspto-grants-2012_09
ORD IDord-894b1c2af8fc4a8892f194a3d8c40702
Source noteuspto-grants-2012_09