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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 390989Generated: October 28, 2026

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

https://huagongshe.com/reaction/390989

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 numberUS08383620B2
Source datasetuspto-grants-2013_02
ORD IDord-27af5b22d9364865a94ee20b22edb91d
Source noteuspto-grants-2013_02