HuagongsheHuagongshe Chemistry Print Report · For research reference only
Water → 2-[2-(5-Methyl-2-phenyl-4-oxazolyl)ethoxy)-5-nitropyridine
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Sodium hydride | HCID 24758 | — |
| Reactant | 2-Chloro-5-nitropyridine | HCID 78308 | — |
| Reactant | 2-(5-Methyl-2-phenyl-4-oxazolyl)ethanol | HCID 725585 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | 2-[2-(5-Methyl-2-phenyl-4-oxazolyl)ethoxy)-5-nitropyridine | HCID 11067329 | 49.5% |
Reaction Steps
To a solution of 2-chloro-5-nitropyridine (25 g) and 2-(5-methyl-2-phenyl-4-oxazolyl)ethanol (32.1 g) in THF (250 ml) was added, in small portions, sodium hydride (60% in oil, 6.92 g), and the mixture was stirred. The reaction mixture was stirred, at room temperature, for further 15 hours, which was poured into water, followed by extraction with ethyl acetate. The ethyl acetate layer was washed with water and dried (MgSO4), then the solvent was distilled off under reduced pressure. The residual crystals are collected by filtration, followed by recrystallization from ethanol to afford 2-[2-(5-methyl-2-phenyl-4-oxazolyl)ethoxy]-5-nitropyridine (25.4 g, 49%) as yellowish brown crystals, m.p.110.5°-111.5° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05591862 |
| Source dataset | uspto-grants-1997_01 |
| ORD ID | ord-30b952e022344b0dbad2af6c1d90e27d |
| Source note | uspto-grants-1997_01 |