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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1050057Generated: November 3, 2026

Potassium Cyanide → 2-(4-Bromo-2,6-difluorophenyl)acetonitrile

https://huagongshe.com/reaction/1050057

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CyanideHCID 9032—
Reactant5-Bromo-2-(bromomethyl)-1,3-difluorobenzeneHCID 2773305—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
Product2-(4-Bromo-2,6-difluorophenyl)acetonitrileHCID 277331145.9%

Reaction Conditions

Temperature25 °C

Reaction Steps

To a solution of 5-bromo-2-(bromomethyl)-1,3-difluorobenzene (1.6 g, 5.60 mmol) in DMF (20 mL) was added KCN (0.401 g, 6.16 mmol). The resulting mixture was stirred at 25° C. for 16 h. The mixture was dissolved in H2O (50 mL) and extracted by EA (50 mL). The organic layer was dried over Na2SO4, filtered and concentrated. The crude material was purified by silica column chromatography (PE/EA=3/1) to yield a white solid of 2-(4-bromo-2,6-difluorophenyl)acetonitrile (1.1 g, 2.57 mmol, 45.9% yield): 1H NMR (400 MHz, CD3OD) δ 7.39-7.36 (m, 2H), 3.89 (s, 2H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09382238B2
Source datasetuspto-grants-2016_07
ORD IDord-506c5231fdce4f0cb24d70be1c2776a7
Source noteuspto-grants-2016_07