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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1878742Generated: November 1, 2026

Hydrazine → 2-(2-aminoethyl)-6-phenylpyridazin-3(2H)-one

https://huagongshe.com/reaction/1878742

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazineHCID 9321—
ReactantHCID 13103521HCID 13103521—
SolventMethanolHCID 887—
Product2-(2-aminoethyl)-6-phenylpyridazin-3(2H)-oneHCID 12902603—

Reaction Conditions

Temperature75 °C

Reaction Steps

A mixture of 2-(2-(6-oxo-3-phenylpyridazin-1(6H)-yl)ethyl)isoindoline-1,3-dione (2.1 g, 6.1 mmol) and hydrazine (10 mL, 10.0 mmol) (THF) in MeOH (40 mL) was heated to 75° C. A clear solution was formed. After overnight (18 h), the slurry was cooled to room temperature and was filtered and washed with MeOH. The filtrate was concentrated and washed with 20% MeOH/CH2Cl2 to give a yellow solid (LCMS indicated the presence of product). The filtrate was concentrated under vacuum and was carried to next step.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08314087B2
Source datasetuspto-grants-2012_11
ORD IDord-06085f8a8f524b67a71ae8284e771fcb
Source noteuspto-grants-2012_11