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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1665664Generated: October 27, 2026

Hydrochloric Acid → 1-(3-Fluorobenzoyl)piperazine hydrochloride

https://huagongshe.com/reaction/1665664

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant4-(3-Fluoro-benzoyl)-piperazine-1-carboxylic acid tert-butyl esterHCID 57875809—
Solvent1,4-DioxaneHCID 31275—
Product1-(3-Fluorobenzoyl)piperazine hydrochlorideHCID 5459279489%

Reaction Steps

A cold solution of 4-(3-fluoro-benzoyl)-piperazine-1-carboxylic acid tert-butyl ester (400 mg, 1.29 mmol) in 1,4-dioxane.HCl (1 mL) was stirred at 0° C. for 1 hour. The reaction mixture was then concentrated under reduced pressure and the resulting crude residue was washed with ether and dried to afford 280 mg (89%) of (3-fluoro-phenyl)-piperazin-1-yl-methanone.hydrochloride.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08039463B2
Source datasetuspto-grants-2011_10
ORD IDord-b06d171eef854b5f99d89c4b917b89e0
Source noteuspto-grants-2011_10