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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 624037Generated: October 31, 2026

1-(2-(4-nitro-1H-pyrazol-1-yl)ethyl)indoline → 1-(2-(Indolin-1-yl)ethyl)-1H-pyrazol-4-amine

https://huagongshe.com/reaction/624037

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-(2-(4-nitro-1H-pyrazol-1-yl)ethyl)indolineHCID 68283576—
CatalystAdams' catalystHCID 345198—
SolventEthanolHCID 702—
SolventEthyl AcetateHCID 8857—
Product1-(2-(Indolin-1-yl)ethyl)-1H-pyrazol-4-amineHCID 62138807—

Reaction Steps

To a solution of 1-(2-(4-nitro-1H-pyrazol-1-yl)ethyl)indoline (183 mg, 0.71 mmol) in EtOAc (0.7 mL, degassed) and EtOH (2 mL, degassed), PtO2 (14 mg, 0.07 mmol) was added and the reaction mixture was stirred at rt under a H2-atmosphere for 18 h. The mixture was diluted with EtOH, filtered over celite and the filter cake was rinsed with EtOH. The filtrate was concentrated to obtain the title compound as an oil, which was used in the next step without further purification. LC-MS conditions A: tR=0.51 min, [M+H]+=229.26.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09303023B2
Source datasetuspto-grants-2016_04
ORD IDord-9580a8ee934d42178a693706bf38d015
Source noteuspto-grants-2016_04