HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
Cyclohexanol → Cyclohexyl Hydrogen Phenylmalonate
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | Cyclohexanol | HCID 7966 | — |
| Edukt | Thionyl Chloride | HCID 24386 | — |
| Edukt | Phenylmalonic acid | HCID 75791 | — |
| Katalysator | Dimethylformamide | HCID 6228 | — |
| Lösungsmittel | Diethyl Ether | HCID 3283 | — |
| Produkt | Cyclohexyl Hydrogen Phenylmalonate | HCID 19042990 | — |
Reaktionsschritte
Phenylmalonic acid (13.5 g, 0.07 mol) in dry ether (40 mL) was treated with thionyl chloride (8.92 g, 5.4 mL, 0.07 mol) and one drop of N,N-dimethylformamide. The mixture was heated at 40°-50° C. for 3 hours. The clear solution was distilled under vacuum. The oily residue was redissolved in dry ether (40 mL), the solution was treated with cyclohexyl alcohol (0.075 mol, 7.9 mL) and refluxed for 2 hours. The mixture was worked up as before to give an oily product which crystallized on standing. Recrystallization was carried out from a benzenepetroleum ether (40°-60°) mixture to give a white crystalline product.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US05418244 |
| Quelldatensatz | uspto-grants-1995_05 |
| ORD ID | ord-ac0b0d8f6fdf49b792a5870d4b32ad56 |
| Quellennotiz | uspto-grants-1995_05 |