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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 576236Generated: October 29, 2026

Ethyl Acetate → 2,5-Difluoroaniline

https://huagongshe.com/reaction/576236

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
Reactant2,5-DifluoronitrobenzeneHCID 67767—
CatalystPalladiumHCID 23938—
SolventMethanolHCID 887—
Product2,5-DifluoroanilineHCID 6777583.1%

Reaction Conditions

Temperature20 °C

Reaction Steps

To a solution of 1,4-difluoro-2-nitrobenzene (500 mg, 3.14 mmol) in MeOH (20 mL) was added Pd/C (66.9 mg, 0.629 mmol) in portions. Then the mixture was stirred under a H2 atmosphere at 20° C. for 1 h. After TLC (PE/EA=3/1) analysis showed the starting material had disappeared, the mixture was filtered. The filtrate was concentrated to give the desired product 2,5-difluoroaniline (338 mg, 2.61 mmol, 83% yield). 1H NMR: (400 MHz, CDCl3) δ 6.94-6.88 (m, 1H), 6.50-6.46 (m, 1H), 6.40-6.31 (m, 1H), 3.82 (br. s., 2H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09035063B2
Source datasetuspto-grants-2015_05
ORD IDord-0d034d46427f42e898bb8a2f693c06fb
Source noteuspto-grants-2015_05