HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
Dichloromethane → Propanoic acid, 2-(4-hydroxyphenoxy)-, ethyl ester
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | Dichloromethane | HCID 6344 | — |
| Edukt | m-Chloroperbenzoic acid | HCID 70297 | — |
| Edukt | Ethyl 2-(4-formylphenoxy)propionate | HCID 3016639 | — |
| Lösungsmittel | Water | HCID 962 | — |
| Produkt | Propanoic acid, 2-(4-hydroxyphenoxy)-, ethyl ester | HCID 3017597 | 52,9% |
Reaktionsschritte
A mixture of 2.2 g of ethyl 2-(4-formylphenoxy)propionate, 10 ml of methylene chloride and 2.6 g of m-chloroperbenzoic acid, were reacted for 2 hours under reflux, and after an addition of 0.5 g of water, further refluxed for 1 hour. After cooling, the reaction mixture was washed twice with 20 g of a 5% sodium hydrogen carbonate aqueous solution, then with 10 g of a 5% sodium hydrogen sulfite aqueous solution and further with 10 g of water. The mixture was concentrated by distilling off methylene chloride, and then subjected to distillation under reduced pressure, whereby 1.1 g of ethyl 2-(4-hydroxyphenoxy)propionate was obtained as a colorless transparent liquid. The boiling point was from 130° to 140° C./1 mmHg.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US04537984 |
| Quelldatensatz | uspto-grants-1985_08 |
| ORD ID | ord-9a82e1cc4cf2437b8e6826d077052a2d |
| Quellennotiz | uspto-grants-1985_08 |