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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 732112Generated: November 1, 2026

4-cyclopropyl-5-(pyridin-4-yl)-4H-1,2,4-triazole-3-thiol → 4-(4-cyclopropyl-4H-[1,2,4]triazol-3-yl)-pyridine

https://huagongshe.com/reaction/732112

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-cyclopropyl-5-(pyridin-4-yl)-4H-1,2,4-triazole-3-thiolHCID 4962549—
CatalystNickelHCID 935—
SolventEthanolHCID 702—
Product4-(4-cyclopropyl-4H-[1,2,4]triazol-3-yl)-pyridineHCID 5783796472.3%

Reaction Conditions

Temperature60 °C

Reaction Steps

4-cyclopropyl-5-pyridin-4-yl-2,4-dihydro-3H-1,2,4-triazole-3-thione (11.11 g, 51 mmol) was slowly added to wet Raney nickel (90 g ) in EtOH (200 mL) in portions. The reaction mixture was heated at 60° C. for 3.5 h and then filtered through celite. The filtrate was concentrated to give the title compound (6.85 g, 72.3%). 1H-NMR: 8.76 (d, 2H), 8.71 (s, 1H), 7.95 (d, 2H), 3.75(m, 1H), 1.08 (m, 2H) and 0.94 (m, 2H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07585881B2
Source datasetuspto-grants-2009_09
ORD IDord-df263967ffd04fac806e74dcc31ef946
Source noteuspto-grants-2009_09