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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1936165Generated: November 2, 2026

Pyridine → 4-bromo-N-cyclopropyl-2-methylbenzamide

https://huagongshe.com/reaction/1936165

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantThionyl ChlorideHCID 24386—
ReactantCyclopropylamineHCID 69828—
Reactant4-Bromo-2-methylbenzoic acidHCID 99570—
SolventEthyl AcetateHCID 8857—
Product4-bromo-N-cyclopropyl-2-methylbenzamideHCID 22568840—

Reaction Steps

A solution of 4-bromo-2-methylbenzoic acid and SOCl2 was refluxed for 3 hours, cooled to room temperature and concentrated under reduced pressure. The residue was dissolved in 30 mL CH2Cl2 and combined with cyclopropyl amine (810.0 mg, 14.3 mmols) and pyridine (2.05 g, 26.0 mmols). The solution was stirred for 18 hours and then diluted with EtOAc before being washed with 5% aqueous HCl, saturated NaHCO3, and saturated aqueous NaCl. The solution was dried (MgSO4) and concentrated under reduced pressure leaving the title compound as a colorless solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06387951B1
Source datasetuspto-grants-2002_05
ORD IDord-7ef1ae1181374f799075f9c2f26d0311
Source noteuspto-grants-2002_05