Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 586333Generated: October 29, 2026

Ethyl Acetate → [3-fluoro-4-(1H-pyrazol-1-yl)phenyl]amine

https://huagongshe.com/reaction/586333

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
Reactant1-(2-fluoro-4-nitrophenyl)-1H-pyrazoleHCID 10703514—
ReactantHCID 178418361HCID 178418361—
CatalystAdams' catalystHCID 345198—
SolventEthanolHCID 702—
Product[3-fluoro-4-(1H-pyrazol-1-yl)phenyl]amineHCID 10725981—

Reaction Steps

A solution of 1-(2-fluoro-4-nitrophenyl)-1H-pyrazole (3 g, 14.5 mmol) and platinum(IV) oxide (100 mg) in ethanol (100 ml) with ethyl acetate (100 ml) was reduced under 40 psi hydrogen for 30 min, then filtered and the solvent removed, to give 5-fluoro-4-(pyrazol-1-yl)phenylamine as a colourless oil: MS (ES+) m/z 178 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06936608B2
Source datasetuspto-grants-2005_08
ORD IDord-c6ea542589cb4a498f82b5665b2a8bd8
Source noteuspto-grants-2005_08