Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1428586Generated: October 31, 2026

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

https://huagongshe.com/reaction/1428586

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 numberUS08937071B2
Source datasetuspto-grants-2015_01
ORD IDord-3d42a5d93970426ab39cd40fabdbf071
Source noteuspto-grants-2015_01