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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 428395Generated: October 30, 2026

Oxalyl chloride → 2-Chloro-4-fluoro-5-nitrobenzoyl chloride

https://huagongshe.com/reaction/428395

Reaction equation

Participants

RoleNameHCIDCharge
ReactantOxalyl chlorideHCID 65578—
Reactant2-Chloro-4-fluoro-5-nitrobenzoic AcidHCID 7210828—
CatalystDimethylformamideHCID 6228—
Solvent1,2-DichloroethaneHCID 11—
Product2-Chloro-4-fluoro-5-nitrobenzoyl chlorideHCID 15124384—

Reaction Steps

A mixture of 2-chloro-4-fluoro-5-nitrobenzoic acid (50.0 g, 0.228 mol) and N,N-dimethylformamide (5 drops) in 1,2-dichloroethane is treated dropwise with oxalyl chloride (30.8 mL, 0.353 mol), refluxed for 3 hours, cooled, and concentrated in vacuo to obtain the title product as an orange solid which is identified by NMR spectral analyses.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06313295B1
Source datasetuspto-grants-2001_11
ORD IDord-f459b42c3e51473cb8f93128c1ec3b36
Source noteuspto-grants-2001_11