Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 456452Generated: October 26, 2026

1-(2-Hydroxyethyl)piperazine → 2-(4-(Methylsulfonyl)piperazin-1-yl)ethanol

https://huagongshe.com/reaction/456452

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-(2-Hydroxyethyl)piperazineHCID 7677—
ReactantTriethylamineHCID 8471—
ReactantMethanesulfonyl chlorideHCID 31297—
SolventDichloromethaneHCID 6344—
Product2-(4-(Methylsulfonyl)piperazin-1-yl)ethanolHCID 2762426480.1%

Reaction Conditions

Temperature0 °C

Reaction Steps

2-Piperazin-1-yl-ethanol (1.30 g, 1.0 mmol) and triethylamine (2.8 mL, 2 mmol) were dissolved in methylene chloride (20 mL). The solution was cooled to 0° C. and methanesulfonyl chloride (0.78 mL, 1 mmol) was added dropwise. The mixture was warmed to r.t., and the solvent was removed under reduced pressure. The residue was purified via silica gel chromatography (10% methanol in ethyl acetate) to afford the title compound (1.0 g, 48%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07186715B2
Source datasetuspto-grants-2007_03
ORD IDord-c5fbdb4a2f9f49c895d491a2067b30a6
Source noteuspto-grants-2007_03