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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1443292Generated: November 4, 2026

2-Methyl-5-nitrophthalazin-1-one → 5-Amino-2-methylphthalazin-1-one

https://huagongshe.com/reaction/1443292

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Methyl-5-nitrophthalazin-1-oneHCID 17989125—
ReactantHCID 178418361HCID 178418361—
CatalystPalladiumHCID 23938—
SolventEthyl AcetateHCID 8857—
Product5-Amino-2-methylphthalazin-1-oneHCID 1798504594%

Reaction Steps

1.57 g of 2-methyl-5-nitro-phthalazin-1-one and 130 mg of palladium on activated carbon are suspended in 45 ml of ethyl acetate and hydrogenated under normal pressure with hydrogen. It is filtered through diatomaceous earth, and the solvent is removed in a vacuum. 1.26 g of 5-amino-2-methyl-phthalazin-1-one is obtained as a yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07659297B2
Source datasetuspto-grants-2010_02
ORD IDord-4e21cd9945dc486b901ac86cc95c0b48
Source noteuspto-grants-2010_02