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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 277769Generated: October 25, 2026

Dimethylformamide → 2-Fluoro-4-methylbenzonitrile

https://huagongshe.com/reaction/277769

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
Reactant4-Bromo-3-fluorotolueneHCID 573280—
CatalystZinc cyanide (Zn(CN)2)HCID 11186—
CatalystHCID 178418397HCID 178418397—
SolventEthyl AcetateHCID 8857—
Product2-Fluoro-4-methylbenzonitrileHCID 2778443—

Reaction Conditions

Temperature80 °C

Reaction Steps

To a degassed solution of 4-bromo-3-fluorotoluene (50.0 g, 264 mmol) in 500 mnL of DMF was added Zn(CN)2 (18.6 g, 159 mmol) and Pd(PPh3)4 (6.1 g, 5.3 mmol). The reaction was stirred at 80° C. for 6 hours, then cooled to room temperature. The solution was poured into EtOAc, washed with water, sat. aq. NaHCO3, and brine, then dried (Na2SO4), filtered, and concentrated in vacuo to provide the crude product. Purification by silica gel chromatography (0-5% EtOAc/hexane) provided the titled product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06358956B1
Source datasetuspto-grants-2002_03
ORD IDord-1fce1789e11846028186549d055ec612
Source noteuspto-grants-2002_03