HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
Diethyl Ether → Ethyl 2-(oxan-2-yloxy)cyclopropane-1-carboxylate
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | Diethyl Ether | HCID 3283 | — |
| Edukt | Ethyl diazoacetate | HCID 12192 | — |
| Edukt | 2-Vinyloxytetrahydropyran | HCID 11528345 | — |
| Katalysator | Rhodium acetate | HCID 168478 | — |
| Produkt | Ethyl 2-(oxan-2-yloxy)cyclopropane-1-carboxylate | HCID 22325102 | — |
Reaktionsschritte
To a solution of 0.75 mol of the compound obtained in Step 1 in 200 ml of ether there are added 1.5 g of rhodium acetate and then, over 6 hours, a solution of 93 g of ethyl diazoacetate in 50 ml of ether. After stirring at ambient temperature for 16 hours, the reaction mixture is filtered and is then distilled at 50-90° C. and 0.5 torr. The residue obtained is redistilled at 80-84° C. and 0.2 torr, allowing the expected product to be isolated.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US06943184B2 |
| Quelldatensatz | uspto-grants-2005_09 |
| ORD ID | ord-9fce2bd7ace74964974f6ee128712839 |
| Quellennotiz | uspto-grants-2005_09 |