HuagongsheHuagongshe Chemistry Print Report · For research reference only
Dimethylformamide → 2-Fluoro-5-iodo-3-nitropyridine
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Dimethylformamide | HCID 6228 | — |
| Reactant | Potassium Fluoride | HCID 522689 | — |
| Reactant | 2-Chloro-5-iodo-3-nitropyridine | HCID 1514294 | — |
| Solvent | Sodium chloride; water | HCID 57417360 | — |
| Product | 2-Fluoro-5-iodo-3-nitropyridine | HCID 1514295 | 47.5% |
Reaction Steps
5-iodo-3-nitro-2-chloropyridine (0.624 g, 2.19 mmol), KF (265 mg, 58.1 mmol), and DMF (3 mL) were stirred at 120 degrees Celsius for 24 h. The mixture was poured into saturated brine, extracted with ethyl acetate, dried over sodium sulfate, then concentrated. The crude residue was purified by flash chromatography using 4-1 hexane:ethyl acetate to yield 5-iodo-3-nitro-2-fluoropyridine (279 mg, 47%) as a colorless solid.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07615567B2 |
| Source dataset | uspto-grants-2009_11 |
| ORD ID | ord-56a7e15da4d24f6f83bdcf9ea4135949 |
| Source note | uspto-grants-2009_11 |