HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
Sodium Cyanide → Methyl 5-cyano-1-naphthoate
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | Sodium Cyanide | HCID 8929 | — |
| Edukt | Methyl 5-bromo-1-naphthoate | HCID 4557673 | — |
| Edukt | HCID 178418546 | HCID 178418546 | — |
| Lösungsmittel | Water | HCID 962 | — |
| Lösungsmittel | Dimethylformamide | HCID 6228 | — |
| Produkt | Methyl 5-cyano-1-naphthoate | HCID 826304 | 95% |
Reaktionsschritte
A mixture of methyl 5-bromo-1-naphthylcarboxylate (5.2 g, 19 mmol) and CuCN (3.4 g, 38 mmol) in 100 mL anhydrous DMF was refluxed overnight. After cooling the reaction to 70° C., a solution of NaCN (2 g) in 50 mL water was added to destroy the copper complex. Ethyl acetate was added and the two layers were separated. The organic layer was washed with brine, dried over MgSO4, and concentrated. Silica gel column chromatography using hexane/ethyl acetate (5/1) gave the product (3.8 g, 95%).
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US06613942B1 |
| Quelldatensatz | uspto-grants-2003_09 |
| ORD ID | ord-a4dd66e2a6f84475920f8b12515c57d9 |
| Quellennotiz | uspto-grants-2003_09 |