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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1666968Generated: October 31, 2026

Thionyl Chloride → 2,4-Difluoro-3-methoxybenzoyl chloride

https://huagongshe.com/reaction/1666968

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThionyl ChlorideHCID 24386—
Reactant2,4-Difluoro-3-methoxybenzoic acidHCID 3780555—
SolventEthyl AcetateHCID 8857—
Product2,4-Difluoro-3-methoxybenzoyl chlorideHCID 3850619—

Reaction Steps

A mixture of 2,4-difluoro-3-methoxybenzoic acid (2.1 g, 11.1 mmol), thionyl chloride (5 mL), and ethyl acetate (30 mL) is refluxed for 4 h. All volatiles are removed in vacuo, and the remaining residue is used directly in the next synthetic step.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08044204B2
Source datasetuspto-grants-2011_10
ORD IDord-fa2eee3b14c54461ab380684b254c85f
Source noteuspto-grants-2011_10