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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 645726Generated: October 27, 2026

Hydrochloric Acid → 1-(2-Methanesulfonylethyl)piperazine dihydrochloride

https://huagongshe.com/reaction/645726

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactanttert-Butyl 4-(2-(methylsulfonyl)ethyl)piperazine-1-carboxylateHCID 66649624—
Solvent1,4-DioxaneHCID 31275—
Product1-(2-Methanesulfonylethyl)piperazine dihydrochlorideHCID 1774988599.1%

Reaction Steps

Hydrochloric acid (42 mL, 168 mmol, 4 M in 1,4-dioxane) was added to a cooled solution of 1-tert-butyloxycarbonyl-4-(2-methanesulfonylethyl)piperazine (2.29 g, 7.8 mmol) in 1,4-dioxane (42 mL). The mixture was stirred at room temperature overnight then concentrated to give 1-(2-methanesulfonylethyl)piperazine dihydrochloride as a white solid (2.05 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07705007B2
Source datasetuspto-grants-2010_04
ORD IDord-4e2356eb1fdc449a82dc8bef80430f5b
Source noteuspto-grants-2010_04