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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2352921Generated: October 30, 2026

Hydrazine hydrate (1:1) → N~1~-[2-(Pyrrolidin-1-yl)ethyl]benzene-1,4-diamine

https://huagongshe.com/reaction/2352921

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazine hydrate (1:1)HCID 24654—
Reactant4-Nitro-N-[2-(pyrrolidin-1-yl)ethyl]anilineHCID 58598908—
CatalystNickelHCID 935—
SolventEthanolHCID 702—
ProductN~1~-[2-(Pyrrolidin-1-yl)ethyl]benzene-1,4-diamineHCID 1609062071.3%

Reaction Conditions

Temperature65 °C

Reaction Steps

A 25 mL round bottom flask was charged with (4-Nitro-phenyl)-(2-pyrrolidin-1-yl-ethyl)-amine (0.352 g, 1.50 mmol) and EtOH (5 mL). Hydrazine Hydrate (0.326 mL, 10.5 mmol) was then added to the solution. Excess RaNi was then added in dropwise until gas evolution ceased. The suspension was then allowed to stir for an additional 1 h at 65° C. The suspension was cooled to room temperature and then was filtered over celite. The celite was washed with MeOH (˜20 mL) and the combined organic solutions were then concentrated in vacuo affording pure N-(2-Pyrrolidin-1-yl-ethyl)-benzene-1,4-diamine as a light purple oil (0.219 g, 1.07 mmol, 71% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07749530B2
Source datasetuspto-grants-2010_07
ORD IDord-ff493131027c4f50af2cb86586f39394
Source noteuspto-grants-2010_07