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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 704406Generated: October 27, 2026

Piperazine → 1-[3-(4-Cyanophenyl)propyl]piperazine

https://huagongshe.com/reaction/704406

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperazineHCID 4837—
ReactantPotassiumHCID 5462222—
Reactant4-(3-Iodopropyl)benzonitrileHCID 22390692—
SolventTetrahydrofuranHCID 8028—
Product1-[3-(4-Cyanophenyl)propyl]piperazineHCID 2007409166.2%

Reaction Steps

A solution of 250 mg of 3-(4-cyanophenyl)propyl iodide, 0.85 g of anhydrous piperazine and 0.5 g of potassium carbonated in 10 ml of tetrahydrofuran was refluxed for 2 hours. The reaction mixture was concentrated under reduced pressure and, after addition of saturated aqueous solution of sodium chloride, the residue was extracted with ethyl acetate. The organic layer was washed with saturated aqueous solution of sodium chloride, dried over anhydrous sodium sulfate and concentrated under reduced pressure to give 140 mg of 1-[3-(4-cyanophenyl)propyl]piperazine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04987132
Source datasetuspto-grants-1991_01
ORD IDord-a484f14d57764511b275d669787169ba
Source noteuspto-grants-1991_01