Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1767753Generated: November 1, 2026

HCID 21114528, compound → 1-(4-Cyanophenyl)-4-(5-aminopyridin-2-yl)piperazine

https://huagongshe.com/reaction/1767753

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHCID 21114528HCID 21114528—
CatalystPalladiumHCID 23938—
SolventEthanolHCID 702—
Product1-(4-Cyanophenyl)-4-(5-aminopyridin-2-yl)piperazineHCID 2111452774.6%

Reaction Steps

10% Palladium on carbon (25 mg, 0.024 mmol) was added to a stirred suspension of 1-(4-cyanophenyl)-4-(5-nitropyridin-2-yl)-piperazine (150 mg, 0.48 mmol) in ethanol (50 ml) at ambient temperature and the reaction stirred for 6 hours under an atmosphere of hydrogen. The reaction was filtered through a pad of celite and the solvent evaporated in vacuo. Purification by flash chromatography on alumina, eluting with 0.5% methanol in dichloromethane yielded 1-(4-cyanophenyl)-4-(5-aminopyridin-2-yl)piperazine (100 mg, 74% yield):

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07235559B1
Source datasetuspto-grants-2007_06
ORD IDord-9b005675e71c476f8db285db7a1ef8e7
Source noteuspto-grants-2007_06