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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1929185Generated: November 1, 2026

4-(3,5-Difluoro-2-nitro-phenoxy)-1H-indole-2-carboxylic acid ethyl ester → 4-(2-Amino-3,5-difluoro-phenoxy)-1H-indole-2-carboxylic acid ethyl ester

https://huagongshe.com/reaction/1929185

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-(3,5-Difluoro-2-nitro-phenoxy)-1H-indole-2-carboxylic acid ethyl esterHCID 66842102—
CatalystPalladiumHCID 23938—
SolventEthyl AcetateHCID 8857—
Product4-(2-Amino-3,5-difluoro-phenoxy)-1H-indole-2-carboxylic acid ethyl esterHCID 66841906—

Reaction Steps

154 (1.8 g, 4.87 mmol) is dissolved in 150 ml of ethyl acetate and, after addition of Pd—C (500 mg), the mixture is hydrogenated at room temperature for 2 hours. The mixture is filtrated over celite to remove the catalyst and evaporated.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08183366B2
Source datasetuspto-grants-2012_05
ORD IDord-b599bbaea7b9483098e75661e12f616e
Source noteuspto-grants-2012_05