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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2167797Generated: October 25, 2026

Hydrazine hydrate (1:1) → 6-(1H-1,2,4-Triazol-1-yl)pyridin-3-amine

https://huagongshe.com/reaction/2167797

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazine hydrate (1:1)HCID 24654—
Reactant5-nitro-2-(1H-1,2,4-triazol-1-yl)pyridineHCID 2766764—
CatalystNickelHCID 935—
SolventEthanolHCID 702—
SolventMethanolHCID 887—
Product6-(1H-1,2,4-Triazol-1-yl)pyridin-3-amineHCID 16772327—

Reaction Steps

Raney nickel (0.650 g) was added to a solution of 5-nitro-2-(1H-1,2,4-triazol-1-yl)pyridine (3.2 g, 16.7 mmol) in a mixture of ethanol and methanol (1:1) (150 mL) followed by the addition of Hydrazine hydrate (2.51 g, 50.2 mmol) and stirring was continued at 25° C. 1 hr. The reaction mixture was filtered over celite bed and washed with methanol. The filtrate and the washings were concentrated under reduced pressure to afford title compound as pale brown liquid. MS (ESI): m/z 162.1 (M+H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09045479B2
Source datasetuspto-grants-2015_06
ORD IDord-144c7b6f515b41598b22ac4f6e0f72af
Source noteuspto-grants-2015_06