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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 18937Generated: October 25, 2026

4-(2-tert-butyl-5-nitro-1H-pyrrole-4-carbonyl)-3,3-dimethylpiperazin-2-one → 4-(2-amino-5-tert-butyl-1H-pyrrole-3-carbonyl)-3,3-dimethylpiperazin-2-one

https://huagongshe.com/reaction/18937

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-(2-tert-butyl-5-nitro-1H-pyrrole-4-carbonyl)-3,3-dimethylpiperazin-2-oneHCID 58679367—
CatalystPalladiumHCID 23938—
SolventMethanolHCID 887—
Product4-(2-amino-5-tert-butyl-1H-pyrrole-3-carbonyl)-3,3-dimethylpiperazin-2-oneHCID 58679235—

Reaction Steps

To 4-(2-tert-butyl-5-nitro-1H-pyrrole-4-carbonyl)-3,3-dimethylpiperazin-2-one (120 mg) in methanol (10 mL) was added Pd catalyst (10% on carbon, 60 mg) and the resulting reaction mixture was stirred under H2 at 60 psi for overnight. After the solids were removed by filtration over Celite, the solvent was removed in vacuo to afford 4-(2-amino-5-tert-butyl-1H-pyrrole-3-carbonyl)-3,3-dimethylpiperazin-2-one 7 as a yellow film (100 mg, 92%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07741479B2
Source datasetuspto-grants-2010_06
ORD IDord-51c3ecd5f60144d39cf31500a3d542e9
Source noteuspto-grants-2010_06