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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1947395Generated: November 4, 2026

Piperazine → 6-(Piperazin-1-yl)pyridine-3-carbonitrile

https://huagongshe.com/reaction/1947395

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperazineHCID 4837—
Reactant6-Chloro-3-pyridinecarbonitrileHCID 5152094—
SolventWaterHCID 962—
SolventAcetonitrileHCID 6342—
Product6-(Piperazin-1-yl)pyridine-3-carbonitrileHCID 2737184—

Reaction Conditions

Temperature60 °C

Reaction Steps

6-Chloronicotinonitrile (500 mg, 3.61 mmole) and piperazine (930 mg, 10.8 mmole) were dissolved in 20 ml of acetonitrile and heated at 60° C. under N2 for 5 hours. The mixture was cooled to room temperature, diluted with water and extracted with dichloromethane (5×). The combined organics were dried over sodium sulfate, filtered, and concentrated to provide the title compound. 1H NMR (300 MHz, CDCl3) δ 8.40 (d, J=1.70 Hz, 1H) 7.60 (dd, J=8.81, 2.37 Hz, 1H) 6.59 (d, J=8.48 Hz, 1H) 3.57-3.75 (m, 4H) 2.91-3.05 (m, 4H); MS (M+H)+=189.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08399468B2
Source datasetuspto-grants-2013_03
ORD IDord-1cce1165cc5a4b4a9a73af41ae6db4c9
Source noteuspto-grants-2013_03