HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
Toluene → 1-Pyrrolidineacetic acid, ethyl ester
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | Toluene | HCID 1140 | — |
| Edukt | Ethyl bromoacetate | HCID 7748 | — |
| Edukt | Pyrrolidine | HCID 31268 | — |
| Lösungsmittel | Tetrahydrofuran | HCID 8028 | — |
| Produkt | 1-Pyrrolidineacetic acid, ethyl ester | HCID 210996 | — |
Reaktionsschritte
To an ice bath-cooled solution of 213.4 g (3 mol) of pyrrolidine in 450 mL of tetrahydrofuran was added dropwise over about 2 hours 250.5 g (1.5 mol) of ethyl bromoacetate, maintaining the temperature below 30° C. To this solution was added 150 mL of toluene to precipitate pyrrolidinium bromide, which was separated by filtration. The filtrate was evaporated under vacuum to provide a residue of about 241 g of ethyl 1-pyrrolinidineacetate.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US05244997 |
| Quelldatensatz | uspto-grants-1993_09 |
| ORD ID | ord-e8381d73f4f9423dbff70d4f1bb4f249 |
| Quellennotiz | uspto-grants-1993_09 |