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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 586344Generated: October 30, 2026

Hydrochloric Acid → 1-[2-(4-Pyridinyl)ethyl]piperazine hydrochloride

https://huagongshe.com/reaction/586344

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantEthyl AcetateHCID 8857—
Reactant1-Boc-4-[2-(4-pyridinyl)ethyl]piperazineHCID 22321631—
SolventDiethyl EtherHCID 3283—
Product1-[2-(4-Pyridinyl)ethyl]piperazine hydrochlorideHCID 2232176487%

Reaction Steps

Alternatively, 1-Boc-4-[2-(4-pyridinyl)ethyl]piperazine (1.0 g, 3.43 mmol) was dissolved in ethyl ether. Ethyl acetate (15 mL) saturated with HCl was added, and the mixture stirred for 30 min at room temperature. The mixture was concentrated under vacuum and provided 1-[2-(4-pyridinyl)ethyl]piperazine hydrochloride (900 mg, 87%) as a tan solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06936611B2
Source datasetuspto-grants-2005_08
ORD IDord-4a764d57ec994a45a57514c453bdd9f7
Source noteuspto-grants-2005_08