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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 882869Generated: October 25, 2026

Hydrazine hydrate (1:1) → 6-amino-3-thiophen-2-yl-1H-quinoxalin-2-one

https://huagongshe.com/reaction/882869

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazine hydrate (1:1)HCID 24654—
Reactant6-Nitro-3-thiophen-2-yl-1H-quinoxalin-2-oneHCID 21083668—
CatalystPalladiumHCID 23938—
SolventMethanolHCID 887—
Product6-amino-3-thiophen-2-yl-1H-quinoxalin-2-oneHCID 21083660—

Reaction Steps

The quinoxalin-2-one of the present example is prepared by reducing 6-nitro-3-thiophen-2-yl-1H-quinoxalin-2-one of Example 39 with H2NNH2.H2O in the presence of Pd/C in refluxing MeOH.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08236807B2
Source datasetuspto-grants-2012_08
ORD IDord-e1b6b9c7fd714bce83186b7b14c72acf
Source noteuspto-grants-2012_08