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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1885181Generated: November 1, 2026

2,6-Difluoro-4-nitrophenol → 4-Amino-2,6-difluorophenol

https://huagongshe.com/reaction/1885181

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2,6-Difluoro-4-nitrophenolHCID 600210—
ReactantHCID 178418361HCID 178418361—
CatalystPalladiumHCID 23938—
SolventEthanolHCID 702—
Product4-Amino-2,6-difluorophenolHCID 277876490.3%

Reaction Steps

2,6-Difluoro-4-nitrophenol (1.75 g, 10 mmol) and 10% palladium on carbon catalyst (0.3 g) in ethanol (100 ml) were shaken in a closed vessel under an initial hydrogen pressure of 3.5 bar. When hydrogen uptake was complete, the catalyst was filtered off, and the filtrate evaporated to a solid, triturated with petroleum ether, filtered, washed and dried to give the title compound (1.31 g), m.p. indeterminate.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05143920
Source datasetuspto-grants-1992_09
ORD IDord-2004720427a641f4b62a6a145eb2c2fe
Source noteuspto-grants-1992_09