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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 858295Generated: October 30, 2026

2-(4-Fluoro-2-nitrophenyl)acetic acid → 6-fluoro-2,3-dihydro-1H-indol-2-one

https://huagongshe.com/reaction/858295

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-(4-Fluoro-2-nitrophenyl)acetic acidHCID 10750492—
ReactantHCID 178418361HCID 178418361—
CatalystPalladiumHCID 23938—
SolventAcetic AcidHCID 176—
Product6-fluoro-2,3-dihydro-1H-indol-2-oneHCID 3731013—

Reaction Steps

119 g 4-fluoro-2-nitrophenylacetic acid are hydrogenated in 600 ml acetic acid with the addition of 20 g palladium on activated charcoal (10%) under 50 psi of hydrogen pressure. The catalyst is suction filtered, the solvent distilled off. The crude product is stirred with 500 ml petroleum ether, suction filtered, washed with water and dried.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07148249B2
Source datasetuspto-grants-2006_12
ORD IDord-50accfa8a926434eb75cd21f6a211fbe
Source noteuspto-grants-2006_12