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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2187945Generated: October 30, 2026

Hydrochloric Acid → Hydrochloric Acid

https://huagongshe.com/reaction/2187945

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactantethyl 3-[4-cyano-(2R)-2-(1-t-butoxycarbonylpyrrolidine-2-ylmethoxy)phenyl]acrylateHCID 69923031—
ReactantHCID 178418361HCID 178418361—
CatalystPalladiumHCID 23938—
SolventEthanolHCID 702—
Solvent1,4-DioxaneHCID 31275—
ProductHydrochloric AcidHCID 313—
Productethyl 3-[4-cyano-(2R)-2-(pyrrolidine-2-ylmethoxy)phenyl]propionateHCID 69922876—

Reaction Steps

3.0 g (7.5 mmol) of ethyl 3-[4-cyano-(2R)-2-(1-t-butoxycarbonylpyrrolidine-2-ylmethoxy)phenyl]acrylate was dissolved in 20 ml of ethanol. 600 mg of 10% palladium/carbon (50% aqueous) was added to the obtained solution, and they were stirred in the presence of hydrogen overnight. The reaction solution was filtered through Celite, and the solvent was evaporated. The obtained crude product was dissolved in 10 ml of 4 N solution of hydrogen chloride in dioxane, and the obtained solution was stirred at room temperature for 3 hours. The solvent was evaporated to obtain hydrochloride of the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06410538B2
Source datasetuspto-grants-2002_06
ORD IDord-81c5083225c84795999b09dcc935165f
Source noteuspto-grants-2002_06