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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 494052Generated: October 25, 2026

Triethylamine → 4-(Bis(4-chlorophenyl)methyl)piperazin-2-one

https://huagongshe.com/reaction/494052

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
Reactant4,4'-Dichlorobenzhydryl chlorideHCID 13078—
ReactantPiperazin-2-oneHCID 231360—
SolventAcetonitrileHCID 6342—
Product4-(Bis(4-chlorophenyl)methyl)piperazin-2-oneHCID 6893177983.5%

Reaction Steps

To a solution of chlorobis(4-chlorophenyl)methane (407 mg, 1.5 mmol) in MeCN was added piperazin-2-one (601 mg, 6.0 mmol) followed by triethylamine (626 μl, 4.5 mmol) and the resulting mixture was refluxed overnight. After cooling to rt, the solvent was evaporated to dryness and the residue was submitted to column chromatography (SiO2, DCM to DCM/MeOH=100:5) to give 4-(bis(4-chlorophenyl)methyl)piperazin-2-one (420 mg) as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07538114B2
Source datasetuspto-grants-2009_05
ORD IDord-27f77bb0ef1241de99bd80c85f018621
Source noteuspto-grants-2009_05