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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2117155Generated: October 30, 2026

Water → 1-(4-Fluorophenyl)-2-oxo-3-pyrrolidinecarboxylic acid

https://huagongshe.com/reaction/2117155

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
Reactant4-FluoroanilineHCID 9731—
Reactant6,6-Dimethyl-5,7-dioxaspiro(2.5)octane-4,8-dioneHCID 79720—
SolventDimethylformamideHCID 6228—
Product1-(4-Fluorophenyl)-2-oxo-3-pyrrolidinecarboxylic acidHCID 418200773.2%

Reaction Steps

To a solution of 6,6-dimethyl-5,7-dioxaspiro[2,5]-octane-4,8-dione (1.02 g, 6.0 mmol, Aldrich) in 3 mL of DMF was added 4-fluorobenzenamine (666 mg, 6.0 mmol, Aldrich). The reaction mixture was stirred at rt overnight. The reaction mixture was poured into cold water (10 mL). The precipitate that formed was collected by filtration, washed with water, and dried under vacuum to afford the desired product (980 mg, 73%) as a tan solid. MS(ESI+) m/z 224.3 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07439246B2
Source datasetuspto-grants-2008_10
ORD IDord-6935b56d2d79410c85ebb986dc3894c3
Source noteuspto-grants-2008_10