Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 336366Generated: October 28, 2026

Piperazine → 1-(4-Ethoxy-pyridin-2-yl)-piperazine hydrochloride

https://huagongshe.com/reaction/336366

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperazineHCID 4837—
Reactant2-Chloro-4-ethoxypyridineHCID 817238—
Solvent1-ButanolHCID 263—
Product1-(4-Ethoxy-pyridin-2-yl)-piperazine hydrochlorideHCID 8669016844%

Reaction Conditions

Temperature115 °C

Reaction Steps

860 mg piperazine was added to 350 mg 2-chloro-4-ethoxy-pyridine in 3.5 mL n-butanol. The reaction was stirred 1.5 days at 115° C. The reaction was filtered and the filtrate was washed with water and evaporated. 1N HCl was added to the residue and the precpipate was filtered to give 238 mg of the desired product. Rt: 0.3 min (method B), (M+H)+: 208

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08889677B2
Source datasetuspto-grants-2014_11
ORD IDord-aa29e03f2d50462e8e58c5a4ee304661
Source noteuspto-grants-2014_11