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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1027466Generated: October 27, 2026

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

https://huagongshe.com/reaction/1027466

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 numberUS08735383B2
Source datasetuspto-grants-2014_05
ORD IDord-fa27124418e9407eaa3753cc67a7e45d
Source noteuspto-grants-2014_05