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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 993244Generated: October 25, 2026

Hydrazine → 4-[6-(3-Amino-propyl)-pyridin-3-yl]-butyl amine

https://huagongshe.com/reaction/993244

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazineHCID 9321—
Reactant2-(3-{5-[4-(1,3-Dioxo-isoindol-2-yl)-butyl]-pyridin-2-yl}-propyl)-isoindole-1,3-dioneHCID 18408985—
SolventEthanolHCID 702—
Product4-[6-(3-Amino-propyl)-pyridin-3-yl]-butyl amineHCID 18408986111.6%

Reaction Steps

A mixture of 3-4 (14 g, 30.7 mmol) and hydrazine (5 mL) in ethanol (500 mL) was heated at reflux for 5 hours. The mixture was cooled and concentrated to ⅓ volume, diluted with 300 mL MTBE, and filtered. The filtrate was concentrated to give 7.1 g of 3-5 as a brown oil, contaminated with a small amount of phthalhydrazide.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06472403B2
Source datasetuspto-grants-2002_10
ORD IDord-165f3f74c3344296a55b0036b226de24
Source noteuspto-grants-2002_10