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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1531563Generated: October 30, 2026

Ethanol → HCID 21254110, compound

https://huagongshe.com/reaction/1531563

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantHCID 21254079HCID 21254079—
ReactantHCID 178418361HCID 178418361—
CatalystPalladiumHCID 23938—
SolventEthyl acetate hexaneHCID 21226206—
ProductHCID 21254110HCID 21254110—

Reaction Steps

A mixture of 770 mg (3.1 mmol) (±)-1-ethyl-3-methyl-3-(4-nitrophenyl)pyrrolidin-2-one, 50 mg of 10% palladium on carbon, and 50 mL of absolute ethanol was shaken with hydrogen (initial hydrogen pressure 46 psig) in a pressure vessel for 2.5 hours. The catalyst was removed by filtration through Celite under nitrogen, and the filter cake was washed with additional ethanol. Concentration of the filtrate in vacuo gave 684 mg (quantitative) of an extremely pale pink oil; essentially homogeneous by TLC in 1:1 hexane-EtOAc. 500 MHz 1H NMR (CDCl3) was consistent with the assigned structure. Mass spectrum (PB-NH3/CI): m/e=219.1 (M+H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06197975B1
Source datasetuspto-grants-2001_03
ORD IDord-62d5afa631c84f3e83506603db345df0
Source noteuspto-grants-2001_03