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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1892434Generated: October 28, 2026

Hydrazine hydrate (1:1) → 1-(5,7-Difluoroquinolin-6-yl)ethanamine

https://huagongshe.com/reaction/1892434

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazine hydrate (1:1)HCID 24654—
Reactant2-(1-(5,7-Difluoroquinolin-6-yl)ethyl)isoindoline-1,3-dioneHCID 58190487—
SolventMethanolHCID 887—
Product1-(5,7-Difluoroquinolin-6-yl)ethanamineHCID 5819057562.4%

Reaction Conditions

Temperature50 °C

Reaction Steps

To a solution of 2-(1-(5,7-difluoroquinolin-6-yl)ethyl)isoindoline-1,3-dione (2.6 g, 7.7 mmol) in CH3OH (50 mL) was added hydrazine monohydrate (0.38 g, 7.7 mmol). The solution was heated at 50° C. and stirred overnight. After cooling and evaporating, the residue was purified by silica gel and eluted with hexane/EtOAc to give the title compound (1.0 g, 60%). 1H-NMR (400 MHz, DMSO-d6) δ ppm 8.95 (d, 1H), 8.45 (d, 1H), 7.65 (d, 1H), 7.60 (dd, 1H), 4.49 (q, 1H), 2.20 (bs, 2H), 1.48 (d, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08507676B2
Source datasetuspto-grants-2013_08
ORD IDord-6c76be756d274300bb7eaea65a6c71eb
Source noteuspto-grants-2013_08