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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 32391Generated: October 29, 2026

Hydrochloric Acid → 4-(5-(4-Fluoro-phenyl)-pyridine-2-yl)-piperazine Hydrochloride

https://huagongshe.com/reaction/32391

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant4-(5-(4-Fluoro-phenyl)-pyridine-2-yl)-piperazine-1-carbaldehydeHCID 23133490—
SolventMethanolHCID 887—
Product4-(5-(4-Fluoro-phenyl)-pyridine-2-yl)-piperazine HydrochlorideHCID 23133533100%

Reaction Steps

4-(5-(4-Fluoro-phenyl)-pyridine-2-yl)-piperazine-1-carbaldehyde (98 mg, 0.34 mmol) was dissolved in MeOH (5 ml) and conc. HCl (12M, 5 ml) was added. The mixture was stirred at room temperature over night. The solvents were removed in vacuo and the remaining water was removed by azeotropic evaporation using EtOH/Toulene affording 102 mg (100%) of the title compound as a yellow powder.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07427631B2
Source datasetuspto-grants-2008_09
ORD IDord-455c44ff335c439684d046487c617b8f
Source noteuspto-grants-2008_09