HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
Potassium Carbonate → 2-Methyl-3-nitropyridine
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | Potassium Carbonate | HCID 11430 | — |
| Edukt | 2-Chloro-3-nitropyridine | HCID 79613 | — |
| Edukt | Methylboronic Acid | HCID 139377 | — |
| Katalysator | HCID 178418397 | HCID 178418397 | — |
| Lösungsmittel | 1,4-Dioxane | HCID 31275 | — |
| Produkt | 2-Methyl-3-nitropyridine | HCID 329360 | 90,2% |
Reaktionsschritte
A mixture of 2-chloro-3-nitropyridine 1 (793 mg, 5.0 mmol), methylboronic acid (329 mg, 5.5 mmol), Pd(PPh3)4 (578 mg, 0.5 mmol) and K2CO3 (2.073 g, 15.0 mmol) in dioxane (25 mL) was refluxed for 2 days. It was then cooled to room temperature and filtered. The solvent was removed and the residue was isolated by flash chromatography (50% ethyl acetate in hexanes) to provide 623 mg (90%) of 2-methyl-3-nitropyridine 3.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US05869676 |
| Quelldatensatz | uspto-grants-1999_02 |
| ORD ID | ord-469fc6e1ae89416eac8e30426cebd3ef |
| Quellennotiz | uspto-grants-1999_02 |