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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1048166Generated: October 30, 2026

Oxalyl chloride → 4-bromo-N-(4-chlorophenethyl)-3-methylbenzamide

https://huagongshe.com/reaction/1048166

Reaction equation

Participants

RoleNameHCIDCharge
ReactantOxalyl chlorideHCID 65578—
Reactant2-(4-Chlorophenyl)ethylamineHCID 67430—
ReactantDiisopropylethylamineHCID 81531—
Reactant4-Bromo-3-methylbenzoic acidHCID 82131—
CatalystDimethylformamideHCID 6228—
SolventDichloromethaneHCID 6344—
SolventEthyl AcetateHCID 8857—
Product4-bromo-N-(4-chlorophenethyl)-3-methylbenzamideHCID 6708090048.8%

Reaction Steps

To a suspension of 4-bromo-3-methylbenzoic acid (0.500 g, 2.325 mmol) in dichloromethane (10 ml) and DMF (1 drop) was added oxalyl dichloride (0.2231 ml, 2.558 mmol), and the reaction was stirred for 30 minutes. N-ethyl-N-isopropylpropan-2-amine (0.8934 ml, 5.115 mmol) and 2-(4-chlorophenyl)ethanamine (0.3557 ml, 2.558 mmol) were added, and the reaction was stirred for 1 hour at ambient temperature. The reaction was diluted with EtOAc and washed with 1M hydrochloric acid, saturated sodium bicarbonate, and saturated sodium chloride. The organic layer was dried over anhydrous sodium sulfate, filtered, and concentrated. The crude material was purified by recrystallization from EtOAc and hexanes to yield 400 mg of the title compound (48.78% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08569522B2
Source datasetuspto-grants-2013_10
ORD IDord-b2493a45b93b4bf98b4f6f44a6776167
Source noteuspto-grants-2013_10