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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 390991Generated: November 2, 2026

Hydrochloric Acid → 1-(4-Fluorobenzene-1-sulfonyl)piperazine--hydrogen chloride (1/1)

https://huagongshe.com/reaction/390991

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHCID 4634543HCID 4634543—
SolventMethanolHCID 887—
SolventDiethyl EtherHCID 3283—
SolventDichloromethaneHCID 6344—
Product1-(4-Fluorobenzene-1-sulfonyl)piperazine--hydrogen chloride (1/1)HCID 17368314—

Reaction Steps

4-(4-Fluoro-benzenesulfonyl)-piperazine-1-carboxylic acid tert-butyl ester (937 mg) was dissolved in methanol (10 ml) and dichloromethane (5 ml), 2M HCl in diethyl ether (13.6 ml) was added and the reaction mixture was stirred at room temperature overnight. Volatiles were removed in vacuo to yield 4-(4-fluoro-benzenesulfonyl)-piperazine hydrochloride salt (819 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08383620B2
Source datasetuspto-grants-2013_02
ORD IDord-bba8de4c52164eee843962ab9e57b083
Source noteuspto-grants-2013_02