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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 418973Generated: October 30, 2026

Hydrazine hydrate (1:1) → 1,4-Benzenediamine, N1,N1-bis(4-aminophenyl)-

https://huagongshe.com/reaction/418973

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazine hydrate (1:1)HCID 24654—
Reactant1,4-DioxaneHCID 31275—
ReactantBenzenamine, 4-nitro-N,N-bis(4-nitrophenyl)-HCID 88538—
CatalystPalladiumHCID 23938—
SolventEthanolHCID 702—
Product1,4-Benzenediamine, N1,N1-bis(4-aminophenyl)-HCID 8008388%

Reaction Conditions

Temperature80 °C

Reaction Steps

To a 300-mL, 3-necked flask equipped with a reflux tube were added 1.52 g (4.00 mmol) of tri(4-nitrophenyl)amine and 5% Pd/C (200 mg), and the inside was replaced with argon. Dioxane (50 mL) and ethanol (25 mL) were added thereto, and the resulting mixture was stirred at a temperature of 80° C., and hydrazine monohydrate (8.0 mL) was added dropwise thereto over 3 hours and further stirred at 80° C. for 20 hours. The catalyst was separated by filtration, and then the reaction mixture was added to ice water (400 mL). The obtained gray solid was obtained by filtration, washed with water and then vacuum-dried, whereby a desired product was obtained (Quantity: 1.02 g, 3.51 mmol, Yield: 88%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08093349B2
Source datasetuspto-grants-2012_01
ORD IDord-50add8a716234dda9ad96b791434de36
Source noteuspto-grants-2012_01