Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2267893Generated: October 30, 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/2267893

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 numberUS07858781B2
Source datasetuspto-grants-2010_12
ORD IDord-b95e4e5bfb0f41738eb31f6de82a0fc5
Source noteuspto-grants-2010_12