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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1044502Generated: November 1, 2026

Citric Acid → HCID 57467236, compound

https://huagongshe.com/reaction/1044502

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCitric AcidHCID 311—
Reactant1-Propanesulfonyl chlorideHCID 66279—
ReactantDiisopropylethylamineHCID 81531—
Reactant3-Hydroxyazetidine hydrochlorideHCID 2759290—
SolventDichloromethaneHCID 6344—
ProductHCID 57467236HCID 5746723636.5%

Reaction Steps

To a cooled solution (0-5° C.) of azetidin-3-ol hydrochloride (1 g, 9.13 mmol) in 10 ml dichloromethane containing diisopropyl ethyl amine (2,391 ml, 13.69 mmol) was added dropwise a solution of propane-1-sulfonyl chloride (1,126 ml, 10.04 mmol) dissolved in 5 ml dichloromethane over an 1 h period. The mixture was allowed to warm up to room temperature and was stirred over night. Citric acid (10%) was added, extracted with dichloromethane, dried over MgSO4, filtered and the solvent was evaporated to obtain 597 mg of a yellow oil, which was purified by chromatography (yield 470 mg)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08563617B2
Source datasetuspto-grants-2013_10
ORD IDord-af45bec8c1244f2398c831694edbd5c6
Source noteuspto-grants-2013_10