Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2271042Generated: November 3, 2026

Dimethylformamide → 2-Fluoro-4-methylbenzonitrile

https://huagongshe.com/reaction/2271042

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantEthyl AcetateHCID 8857—
Reactant4-Bromo-3-fluorotolueneHCID 573280—
CatalystZinc cyanide (Zn(CN)2)HCID 11186—
CatalystHCID 178418397HCID 178418397—
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 mL 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 numberUS06333335B1
Source datasetuspto-grants-2001_12
ORD IDord-d07ee1b72e554429b49e77f297388f9a
Source noteuspto-grants-2001_12