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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 378894Generated: October 25, 2026

Oxalyl chloride → 4-Bromo-2-methylbenzoyl chloride

https://huagongshe.com/reaction/378894

Reaction equation

Participants

RoleNameHCIDCharge
ReactantOxalyl chlorideHCID 65578—
Reactant4-Bromo-2-methylbenzoic acidHCID 99570—
CatalystDichloromethaneHCID 6344—
Product4-Bromo-2-methylbenzoyl chlorideHCID 12846483—

Reaction Steps

A suspension of 4bromo-2-methylbenzoic acid (4.9 g, 22.8 mmol) in dichioromethane containing a few drops of N,N-dimethylformamde was treated dropwise under nitrogen with oxalyl chloride (2.4 mL, 27.5 mol). After gas evolution subsided, the reaction mixture was refluxed for an additional 15 minutes and then evaporated to dryness in vacuo to provide the crude 4-bromo-2-methylbenzoyl chloride.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06297234B1
Source datasetuspto-grants-2001_10
ORD IDord-b5ef46d355a645e1ae379e14e4216879
Source noteuspto-grants-2001_10