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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 494349Generated: October 26, 2026

Water → 2-[4-(Aminomethyl)phenyl]benzonitrile

https://huagongshe.com/reaction/494349

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantHydrazine hydrate (1:1)HCID 24654—
Reactant4'-(Bromomethyl)-2-cyanobiphenylHCID 1501912—
ReactantPhthalimide potassium saltHCID 24194345—
SolventMethanolHCID 887—
SolventDimethylformamideHCID 6228—
Product2-[4-(Aminomethyl)phenyl]benzonitrileHCID 1393341154.6%

Reaction Conditions

Temperature70 °C

Reaction Steps

A mixture of 2-(4-bromomethylphenyl)benzonitrile (12 g) and potassium phtalimide (15 g) in DMF (200 ml) was stirred at 70° C. for 5 hours. After addition of water, the mixture was extracted with methylene chloride. The extract was washed with water, dried and concentrated to dryness to give crystals. Recrystallization from ethyl acetate-isopropyl ether gave colorless crystals. To a suspension of the crystals in methanol (500 ml) was added hydrazine hydrate (10 ml) and the mixture was refluxed for 12 hours. After evaporation of the solvent, the residue was dissolved in ethyl acetate and the solution was washed with 1N-NaOH and water. The organic layer was dried and concentrated to dryness to give crystals (14.2 g, 93%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07538133B2
Source datasetuspto-grants-2009_05
ORD IDord-9a6b3c4aae1047d3845755c65b4f1c2b
Source noteuspto-grants-2009_05