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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1404433Generated: October 30, 2026

Acetic Acid → HCID 49848907, compound

https://huagongshe.com/reaction/1404433

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
Reactant1-BromopropaneHCID 7840—
Reactant1-(1-phenylethyl)pyrrolidin-2-oneHCID 3815165—
ReactantLithium diisopropylamineHCID 45051747—
SolventTetrahydrofuranHCID 8028—
ProductHCID 49848907HCID 49848907—

Reaction Conditions

Temperature-78 °C

Reaction Steps

To a 2 M lithium diisopropylamine solution in tetrahydrofuran of −78° C. is added 1-phenylethyl-2-pyrrolidone and the mixture is stirred for 1.5 h at −78° C. Then 1-propyl bromide is added and the reaction is stirred for another 1.5 h at −78° C. The reaction mixture is allowed to warm up to 0° C. before ice-cold water with acetic acid is added and subsequently extracted 3 times with dichloromethane. The dichloromethane is concentrated in vacuo and the residue is dissolved in dichloromethane, washed with saturated NaHCO3 and brine. Crude 1-phenethyl-3-propylpyrrolidin-2-one is obtained after removal of the solvents in vacuo. The product is purified by column chromatography.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08912329B2
Source datasetuspto-grants-2014_12
ORD IDord-8f3292de930d458f924ad4e279e7205b
Source noteuspto-grants-2014_12