HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
Ethylenediamine → Ethyl 2-fluorocyclopropanecarboxylate
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | Ethylenediamine | HCID 3301 | — |
| Edukt | Ethyl 1-chloro-2-fluorocyclopropanecarboxylate | HCID 15346054 | — |
| Katalysator | Nickel | HCID 935 | — |
| Lösungsmittel | Ethanol | HCID 702 | — |
| Produkt | Ethyl 2-fluorocyclopropanecarboxylate | HCID 10313150 | 81% |
Reaktionsschritte
An internal glass tube was introduced into an autoclave and 0.5 g of ethyl 1-chloro-2-fluoro-1-cyclopropanecarboxylate (cis:trans=1.4:1), 0.5 ml of Raney nickel and 5 ml of ethanol were fed thereinto. Then 0.18 mg of 1,2-diaminoethane was further added and the mixture was stirred at room temperature under an elevated hydrogen gas atmosphere (10 kgf/cm2) for 48 hours. After the completion of the reaction, the catalyst was filtered off. Then the reaction mixture containing the title compound was analyzed by gas chromatography. As a result, it was found out that the reaction conversion rate was 95%, the yield was 81% and the cis:trans ratio was 0.3:1.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US05780669 |
| Quelldatensatz | uspto-grants-1998_07 |
| ORD ID | ord-5656af2acacb4db4b1e2b0c10c97e9a2 |
| Quellennotiz | uspto-grants-1998_07 |