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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 520667Generated: October 29, 2026

1-(Benzyloxy)-2,3-difluoro-4-nitrobenzene → 4-Amino-2,3-difluorophenol

https://huagongshe.com/reaction/520667

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-(Benzyloxy)-2,3-difluoro-4-nitrobenzeneHCID 57470877—
CatalystPalladiumHCID 23938—
SolventMethanolHCID 887—
SolventTetrahydrofuranHCID 8028—
Product4-Amino-2,3-difluorophenolHCID 2778766840.2%

Reaction Conditions

Temperature32 °C

Reaction Steps

To a suspension of 1-(benzyloxy)-2,3-difluoro-4-nitrobenzene (1.93 g, 0.73 mmol) in CH3OH (45 mL) and THF (9 mL) was added Pd/C (333 mg, 6% Pd content, 53%˜55% water content). The mixture was stirred at 32° C. for 13 hours under H2 atmosphere. The mixture was filtered through a CELITE® pad, which was washed with 50 mL of EtOAc. The filtrate was concentrated in vacuo, washed with 30 mL of CH2Cl2 to give the title compound as a dark brown solid (0.89 g, 84%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09326975B2
Source datasetuspto-grants-2016_05
ORD IDord-f6d1278c460d4baca81bf9e802fa77d5
Source noteuspto-grants-2016_05