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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2358993Generated: October 30, 2026

4-Nitroindazole → NoName_3327

https://huagongshe.com/reaction/2358993

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-NitroindazoleHCID 18057—
ReactantHCID 178418361HCID 178418361—
CatalystPalladiumHCID 23938—
SolventEthanolHCID 702—
ProductNoName_3327HCID 413085101.3%

Reaction Steps

A mixture of 4-nitro-1H-indazole (760 mg, 4.68 mmol), palladium on charcoal (10%, cat.) and ethanol (30 mL) was stirred under a balloon of hydrogen for 4 h. The reaction mixture was then filtered through celite, and the solvent removed in vacuo to yield 1H-indazol-4-ylamine (68) (631 mg, 100%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08685968B2
Source datasetuspto-grants-2014_04
ORD IDord-fb19f0e786bb4f8d880708533c3ab717
Source noteuspto-grants-2014_04