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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 347550Generated: October 25, 2026

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

https://huagongshe.com/reaction/347550

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 numberUS07173031B2
Source datasetuspto-grants-2007_02
ORD IDord-e928ba1748034be9baf367de6e0a6b71
Source noteuspto-grants-2007_02