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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1678653Generated: October 31, 2026

Ethyl Acetate → 2-(4-Amino-3-fluoro-phenoxy)-2-methyl-propionic acid ethyl ester

https://huagongshe.com/reaction/1678653

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
Reactant2-(3-Fluoro-4-nitro-phenoxy)-2-methyl-propionic acid ethyl esterHCID 67131190—
ReactantHCID 178418361HCID 178418361—
CatalystPalladiumHCID 23938—
SolventEthanolHCID 702—
Product2-(4-Amino-3-fluoro-phenoxy)-2-methyl-propionic acid ethyl esterHCID 67130976127.5%

Reaction Steps

10% Palladium on carbon (200 mg) was added to a solution of 2-(3-fluoro-4-nitro-phenoxy)-2-methyl-propionic acid ethyl ester (1.15 g, 4 mmol) in ethanol (20 ml). The suspension was hydrogenated at a hydrogen gas pressure of 1.7 bar for 8 h at ambient temperature. Ethyl acetate was added (100 ml), the solid was filtered off and the filtrate was brought to dryness under reduced pressure to give the title compound (1.23 g, quant.) which was used in the next step without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08008505B2
Source datasetuspto-grants-2011_08
ORD IDord-be4c83477416454680c77d2c89bb4fd7
Source noteuspto-grants-2011_08