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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 54991Generated: October 30, 2026

2-methyl-4-(4-nitrophenyl)-1-(2H)-phthalazinone → HCID 19957100, compound

https://huagongshe.com/reaction/54991

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-methyl-4-(4-nitrophenyl)-1-(2H)-phthalazinoneHCID 19957132—
CatalystPalladiumHCID 23938—
SolventEthanolHCID 702—
ProductHCID 19957100HCID 1995710099.3%

Reaction Steps

To a suspension of 2-methyl-4-(4-nitrophenyl)-1-(2H)-phthalazinone (3.0 g, 10.7 mmol) in ethanol (150 mL) under N2 was added 10% Pd/C (0.75 g). The mixture was hydrogenated on a Parr hydrogenator at 50 psi for 2 hours, the catalyst was removed by filtration and the solvent was removed in vacuo to afford 2.67 g (97%) of 2-methyl-4-(4-aminophenyl)-1-(2H)-phthalazinone as a yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05624922
Source datasetuspto-grants-1997_04
ORD IDord-eb2b320db5014469979d2dcb456cf3fa
Source noteuspto-grants-1997_04