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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1954086Generated: October 31, 2026

Hydrochloric Acid → HCID 57206111, compound

https://huagongshe.com/reaction/1954086

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant4-Methoxybenzenesulfonyl chlorideHCID 7401—
ReactantTriethylamineHCID 8471—
Reactant(3S)-pyrrolidin-3-olHCID 2733874—
SolventWaterHCID 962—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 57206111HCID 5720611188.5%

Reaction Steps

The 3(S)-hydroxy-pyrrolidine (1.0 g, 11.5 mmol), triethylamine (2.32 g, 22.9 mmol, 2.0 equiv) in 1,4-dioxane (30 mL) and water (10 mL) is stirred at room temperature and then 4-methoxyphenylsulfonyl chloride (2.61 g, 12.6 mmol, 1.10 equiv) is added. The resulting solution is stirred at room temperature for 3 h. and then the solution is acidified to pH~1 with 1 N HCl. The solution is poured into water and then extracted with CH2Cl2. The organic extracts are dried (Na2SO4) and concentrated o an oil. The oil is purified by chromatography using 1/1 hexane/EtOAc as the eluent to afford 2.62 g (81%) of the desired product as a colorless oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06121272
Source datasetuspto-grants-2000_09
ORD IDord-69a97ab895034ee794091d101474f5ab
Source noteuspto-grants-2000_09