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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1365308Generated: October 31, 2026

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

https://huagongshe.com/reaction/1365308

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 numberUS07888352B2
Source datasetuspto-grants-2011_02
ORD IDord-98788320b09d404a9f39e3d72ffd089d
Source noteuspto-grants-2011_02