HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
Potassium Hydroxide → 1-(2-(4-Fluorophenyl)ethyl)piperazine
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | Potassium Hydroxide | HCID 14797 | — |
| Edukt | Ethyl 4-[2-(4-fluorophenyl)ethyl]piperazine-1-carboxylate | HCID 12679858 | — |
| Lösungsmittel | Ethanol | HCID 702 | — |
| Produkt | 1-(2-(4-Fluorophenyl)ethyl)piperazine | HCID 11254522 | 60% |
Reaktionsschritte
As in the foregoing Example, 48.6 g of the carbamate is hydrolyzed with 50 g potassium hydroxide in 50 ml ethanol at 120° C. Processing gives 21.5 g (60%) 1-[2-(4-fluorophenyl)ethyl]piperazine with a b.p. of 142° C./3 Torr. It may be transformed into a dimaleate crystallizing from 95% ethanol as a hemihydrate and melting at 164.5°-166.5° C.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US04243805 |
| Quelldatensatz | uspto-grants-1981_01 |
| ORD ID | ord-e9f1f1b9277a40c581503e7107f1f535 |
| Quellennotiz | uspto-grants-1981_01 |