Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1809273Generated: October 31, 2026

[2-(3,5-Dimethyl-pyrazol-1-yl)-9-methyl-9H-purin-6-yl]-(4-nitro-phenyl)-amine → N-[2-(3,5-dimethyl-pyrazol-1-yl)-9-methyl-9H-purin-6-yl]-benzene-1,4-diamine

https://huagongshe.com/reaction/1809273

Reaction equation

Participants

RoleNameHCIDCharge
Reactant[2-(3,5-Dimethyl-pyrazol-1-yl)-9-methyl-9H-purin-6-yl]-(4-nitro-phenyl)-amineHCID 25016608—
CatalystPalladiumHCID 23938—
SolventMethanolHCID 887—
SolventDichloromethaneHCID 6344—
ProductN-[2-(3,5-dimethyl-pyrazol-1-yl)-9-methyl-9H-purin-6-yl]-benzene-1,4-diamineHCID 2501712298.1%

Reaction Steps

[2-(3,5-Dimethyl-pyrazol-1-yl)-9-methyl-9H-purin-6-yl]-(4-nitro-phenyl)-amine (2.89 g, 7.93 mmol) was dissolved in methanol (50 mL) and dichloromethane (50 mL). Palladium on carbon (5%, 600 mg) was added and the reaction mixture was stirred under a hydrogen atmosphere for 24 hours. Filtration through celite followed by concentration in vacuo gave N-[2-(3,5-dimethyl-pyrazol-1-yl)-9-methyl-9H-purin-6-yl]-benzene-1,4-diamine (2.6 g, 98%) as a yellow foam.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08362024B2
Source datasetuspto-grants-2013_01
ORD IDord-e2fcce8a313c40b397d898ca513648e8
Source noteuspto-grants-2013_01