HuagongsheHuagongshe Chemistry Print Report · For research reference only
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
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Pyridine, 4-(4,5-dimethyl-4H-1,2,4-triazol-3-yl)- | HCID 11600754 | — |
| Reactant | 3-(1-Bromo-ethyl)-5-(3-chloro-phenyl)-[1,2,4]oxadiazole | HCID 57837931 | — |
| Reactant | Butyllithium | HCID 178418339 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | 4-(5-{2-[5-(3-Chloro-phenyl)-[1,2,4]oxadiazol-3-yl]-propyl}-4-methyl-4H-[1,2,4]triazol-3-yl)-pyridine | HCID 59667366 | 10% |
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
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07456200B2 |
| Source dataset | uspto-grants-2008_11 |
| ORD ID | ord-13dda66d8e6f454187b700922620fc93 |
| Source note | uspto-grants-2008_11 |