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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1039093Generated: November 2, 2026

Ethyl Acetate → 1-(4-methoxybenzyl)-3-methyl-1H-indazol-5-amine

https://huagongshe.com/reaction/1039093

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
Reactant1-(4-methoxybenzyl)-3-methyl-5-nitro-1H-indazoleHCID 66927123—
CatalystPalladiumHCID 23938—
SolventMethanolHCID 887—
Product1-(4-methoxybenzyl)-3-methyl-1H-indazol-5-amineHCID 66927063—

Reaction Steps

1-(4-methoxybenzyl)-3-methyl-5-nitro-1H-indazole (275 mg, 0.93 mmol) from Step 1 of this example was dissolved in MeOH (4.6 ml) and EtOAc (10 ml) to give a clear yellow solution. Pd/C (10%, 98 mg) was added, the vessel evacuated and backfilled with hydrogen (3×) and slurry stirred under a hydrogen atmosphere for 30 minutes. The mixture was filtered through CELITE, the filter cake washed with EtOAc (2×40 ml), the filtrates combined and the volatiles removed in vacuum to give the titled compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08552022B2
Source datasetuspto-grants-2013_10
ORD IDord-c21d29b60fff45bbb0851b95af5c347b
Source noteuspto-grants-2013_10