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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 864383Generated: November 3, 2026

Piperazine → 1-(2-Nitrophenyl)piperazine

https://huagongshe.com/reaction/864383

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperazineHCID 4837—
Reactant1-Chloro-2-nitrobenzeneHCID 6945—
ReactantPotassium CarbonateHCID 11430—
SolventAcetonitrileHCID 6342—
SolventDichloromethaneHCID 6344—
Product1-(2-Nitrophenyl)piperazineHCID 100949—

Reaction Steps

Piperazine (24.46 g) is dissolved in acetonitrile (200 ml) and anhydrous potassium carbonate (10.47 g) is added. Then 2-chloronitrobenzene (10.0 g) is added dropwise. After stirring 1 hr at 20°, the reaction mixture is diluted with methylene chloride, washed with water, and saturated aqueous potassium carbonate. After drying over anhydrous sodium sulfate, the reaction mixture is concentrated under reduced pressure to give the title compound, NMR (300 MHz, CDCl3) 7.75, 7.49, 7.14, 7.04, 3.03 and 1.93δ.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05563142
Source datasetuspto-grants-1996_10
ORD IDord-8ced6dfeb6cb465c84606e568f5fbcbd
Source noteuspto-grants-1996_10