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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 881408Generated: November 1, 2026

Hydrochloric Acid → Piperazine, 1-[(1-methyl-1H-imidazol-4-yl)sulfonyl]-, hydrochloride (1:1)

https://huagongshe.com/reaction/881408

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHCID 58561856HCID 58561856—
SolventMethanolHCID 887—
SolventDiethyl EtherHCID 3283—
SolventDichloromethaneHCID 6344—
ProductPiperazine, 1-[(1-methyl-1H-imidazol-4-yl)sulfonyl]-, hydrochloride (1:1)HCID 66934082—

Reaction Steps

4-(1-Methylimidazole-4-sulfonyl)-piperazine-1-carboxylic acid tert-butyl ester (730 mg) was dissolved in methanol (10 ml) and dichloromethane (5 ml), 2M HCl in diethyl ether (11 ml) was added and the reaction mixture was stirred at room temperature overnight. Volatiles were removed in vacuo to yield 4-(1-methylimidazole-4-sulfonyl)-piperazine hydrochloride salt (704 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08993563B2
Source datasetuspto-grants-2015_03
ORD IDord-02d757ced25d49a2b9919f7bcac74f50
Source noteuspto-grants-2015_03