Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 897560Generated: October 30, 2026

Phenethylamine → 4-bromo-N-phenylbenzamide

https://huagongshe.com/reaction/897560

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhenethylamineHCID 1001—
ReactantTriethylamineHCID 8471—
Reactant4-Bromobenzoyl chlorideHCID 68515—
SolventDichloromethaneHCID 6344—
Product4-bromo-N-phenylbenzamideHCID 69096676.5%

Reaction Steps

Phenethylamine (1.2 mL, 9.57 mmol) was added slowly to a mixture of 4-Bromo-1-benzenecarbonyl chloride (2.0 g, 9.11 mmol) and triethyl amine (1.9 mL, 13.67 mmol) in dichloromethane (95 mL). After 3 hours, solvent was removed under reduced pressure. Ethyl acetate was added and the mixture was filtered. The filtrate was concentrated under reduced pressure and the residue was re-crystallized from ethyl acetate/heptane to give N1-phenyl-4-bromobenzamide (1.925 g, 69%). 1H NMR (DMSO-d6) δ 2.84 (m, 2H), 3.47 (m, 2H), 7.28 (m, 5H), 7.67 (d, J=8.59 Hz, 2H), 7.76 (d, J=8.59 Hz, 4H), 8.64 (m, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06921763B2
Source datasetuspto-grants-2005_07
ORD IDord-140c9dc7dea54416b938b222ee096329
Source noteuspto-grants-2005_07