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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1815912Generated: November 1, 2026

1-Benzyl-5-nitro-1H-indazole → 1-(Phenylmethyl)-1H-indazol-5-amine

https://huagongshe.com/reaction/1815912

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-Benzyl-5-nitro-1H-indazoleHCID 21952082—
CatalystPalladiumHCID 23938—
SolventMethanolHCID 887—
SolventEthyl AcetateHCID 8857—
Product1-(Phenylmethyl)-1H-indazol-5-amineHCID 212069—

Reaction Steps

To 906.4 mg (3.58 mmol) of 1-benzyl-5-nitro-1H-indazole (Step 1) in 20 mL of MeOH and 5 mL of EtOAc at RT was added a slurry of 150 mg of 10% Pd—C in 5 mL of MeOH. The resulting slurry was then stirred under a balloon of H2 for 1.2 h, filtered through Celite®, and rinsed with MeOH and EtOAc. Concentration of the filtrate gave (1-benzyl-1H-indazol-5-yl)amine as a pinkish solid: MS m/z=224 [M+H]+. Calc'd for C14H13N3: 223.11.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06881737B2
Source datasetuspto-grants-2005_04
ORD IDord-3e0a080a6514486c8e26be7022d57a94
Source noteuspto-grants-2005_04