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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2261193Generated: November 2, 2026

4-Benzyl-9-methyl-7-(2-methyl-5-nitro-phenyl)-4,9-dihydro-3,4,9-triaza-cyclopenta[a]naphthalen-8-one → 7-(5-Amino-2-methyl-phenyl)-9-methyl-3,9-dihydro-3,4,9-triaza-cyclopenta[a]naphthalen-8-one

https://huagongshe.com/reaction/2261193

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Benzyl-9-methyl-7-(2-methyl-5-nitro-phenyl)-4,9-dihydro-3,4,9-triaza-cyclopenta[a]naphthalen-8-oneHCID 59198508—
CatalystPalladium hydroxideHCID 9942167—
SolventEthanolHCID 702—
Product7-(5-Amino-2-methyl-phenyl)-9-methyl-3,9-dihydro-3,4,9-triaza-cyclopenta[a]naphthalen-8-oneHCID 59198525—

Reaction Steps

4-Benzyl-9-methyl-7-(2-methyl-5-nitro-phenyl)-4,9-dihydro-3,4,9-triaza-cyclopenta[a]naphthalen-8-one (590 mg, 1.4 mmol) and 200 mg Pd(OH)2 in 20 ml ethanol is stirred under hydrogen atmosphere at room temperature for 12 hours. The reaction mixture is passed through a celite pad. The filtrate is concentrated and dried under vacuum to give the title compound as solid. MS m/z 305.2 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07846923B2
Source datasetuspto-grants-2010_12
ORD IDord-a964c63483894adebaaeb2ea32eab291
Source noteuspto-grants-2010_12