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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 930553Generated: October 30, 2026

6-(4-benzylamino-3-nitrophenyl)-5-methyl-4,5-dihydro-2H-pyridazin-3-one → 5-Methyl-6-(3-amino-4-benzylamino-phenyl)-4,5-dihydro-2H-pyridazine-3-one

https://huagongshe.com/reaction/930553

Reaction equation

Participants

RoleNameHCIDCharge
Reactant6-(4-benzylamino-3-nitrophenyl)-5-methyl-4,5-dihydro-2H-pyridazin-3-oneHCID 11724680—
ReactantHCID 178418361HCID 178418361—
CatalystNickelHCID 935—
SolventTetrahydrofuranHCID 8028—
Product5-Methyl-6-(3-amino-4-benzylamino-phenyl)-4,5-dihydro-2H-pyridazine-3-oneHCID 13136676—

Reaction Steps

6-(4-Benzylamino-3-nitro-phenyl)-5-methyl-4,5-dihydro-2H-pyridazin-3-one E-4.1′ (662 mg; 1.96 mmol) is solved in 200 ml THF, a scoop of Raney Nickel is then added. The mixture is placed in the hydrogenation apparatus and stirred at RT for 1.5 hours under 4 bar hydrogen pressure. The Raney Nickel is filtered off and the reaction solution evaporated to dryness.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09296748B2
Source datasetuspto-grants-2016_03
ORD IDord-a355178025084474a8cf84c2d6d9af0e
Source noteuspto-grants-2016_03