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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1775911Generated: November 1, 2026

Water → 1-(4-Fluorophenethyl)-1-(4-chlorophenyl)hydrazine

https://huagongshe.com/reaction/1775911

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantHydrazine, (4-chlorophenyl)-, hydrochloride (1:1)HCID 71600—
Reactant4-Fluorophenethyl bromideHCID 573153—
CatalystTetrabutylammonium ChlorideHCID 70681—
SolventSodium HydroxideHCID 14798—
Product1-(4-Fluorophenethyl)-1-(4-chlorophenyl)hydrazineHCID 66868980—

Reaction Conditions

Temperature77.5 °C

Reaction Steps

The title compound was prepared by General Method 2. 4-chlorophenylhydrazine hydrochloride (2.2 g) was added to a vigorously stirred mixture of tetra-n-butylammonium chloride (200 mg) in 50% aqueous sodium hydroxide (12 mL) followed by 4-fluorophenethyl bromide (2.5 g). The mixture was heated at 75-80° C. (oil bath temp.) for 3.5 h. After cooling to room temperature, water was added and the mixture extracted with chloroform and the chloroform layer was washed with brine. The combined extract was dried (sodium sulfate), evaporated in vacuo to give a dark oil which was chromatographed over silica gel, eluting with chloroform followed by recrystallization from cyclohexane to obtain 750 mg of product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09260429B2
Source datasetuspto-grants-2016_02
ORD IDord-c633a776f3ce42458aac9364d5e54ff1
Source noteuspto-grants-2016_02