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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 273166Generated: October 28, 2026

Pyridine, 4-(4,5-dimethyl-4H-1,2,4-triazol-3-yl)- → 4-(5-{2-[5-(3-Chloro-phenyl)-[1,2,4]oxadiazol-3-yl]-propyl}-4-methyl-4H-[1,2,4]triazol-3-yl)-pyridine

https://huagongshe.com/reaction/273166

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridine, 4-(4,5-dimethyl-4H-1,2,4-triazol-3-yl)-HCID 11600754—
Reactant3-(1-Bromo-ethyl)-5-(3-chloro-phenyl)-[1,2,4]oxadiazoleHCID 57837931—
ReactantButyllithiumHCID 178418339—
SolventTetrahydrofuranHCID 8028—
Product4-(5-{2-[5-(3-Chloro-phenyl)-[1,2,4]oxadiazol-3-yl]-propyl}-4-methyl-4H-[1,2,4]triazol-3-yl)-pyridineHCID 5966736610%

Reaction Steps

84 microl (0.21 mmol, 2.5 M) n-BuLi was added dropwise to a solution of 37 mg (0.21 mmol) 4-(4,5-dimethyl-4H-[1,2,4]triazol-3-yl)-pyridine in 2.1 ml THF at 0° C. After 20 min a solution of 60 mg (0.21 mmol) 3-(1-bromo-ethyl)-5-(3-chloro-phenyl)-[1,2,4]oxadiazole was added dropwise. The reaction mixture was allowed to reach room temperature and stirred over night. NH4Cl(sat) was added and the mixture was extracted twice with EtOAc. The organic phase was dried and concentrated. Flashchromatography (CH2Cl2/MeOH 20:1) afforded 7.7 mg (10%) of the desired product. 1H NMR (CDCl3), d (ppm): 1.57 (d, 3 H) 3.16 (m, 1 H) 3.38 (m, 1 H) 3.71 (s, 3 H) 3.84 (d, 1 H) 7.46 (t, 1 H) 7.55 (m, 1 H) 7.58 (m, 2 H) 7.98 (m, 1 H) 8.10 (t, 1 H) 8.77 (d, 2 H)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07456200B2
Source datasetuspto-grants-2008_11
ORD IDord-13dda66d8e6f454187b700922620fc93
Source noteuspto-grants-2008_11