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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 533385Generated: October 25, 2026

Ethanol → (S)-3-[(R)-2-Ethoxy-1-(naphthalen-1-yloxy)ethyl]pyrrolidine

https://huagongshe.com/reaction/533385

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
Reactant1-FluoronaphthaleneHCID 9450—
ReactantSodium hydrideHCID 24758—
Reactant(S)-3-((R)-2-Ethoxy-1-hydroxyethyl)pyrrolidine-1-carboxylic Acid t-Butyl EsterHCID 66858889—
SolventHydrochloric AcidHCID 313—
SolventDimethylformamideHCID 6228—
Product(S)-3-[(R)-2-Ethoxy-1-(naphthalen-1-yloxy)ethyl]pyrrolidineHCID 58120253—

Reaction Steps

(S)-3-((R)-2-Ethoxy-1-hydroxyethyl)pyrrolidine-1-carboxylic acid t-butyl ester (200 mg, 0.8 mmol) and 1-fluoronaphthalene were dissolved in DMF (2.7 mL). NaH (27.8 mg, 1.2 mmol) was added and the mixture was stirred at room temperature for 15 minutes, then heated at 120° C. for 4 hours. The mixture was then cooled to room temperature. The mixture was concentrated then dissolved in 1.2M HCl in EtOH (19 mL, 23 mmol) and stirred overnight at room temperature. The product was concentrated and purified by preparative HPLC to yield the title compound as a mono-TFA salt (125 mg, 94% purity). MS m/z: [M+H]+ calcd for C18H23NO2, 286.17. found 286.2.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08853255B2
Source datasetuspto-grants-2014_10
ORD IDord-f75c8874f2fc43f2b07c0d3fe5cb7e7b
Source noteuspto-grants-2014_10