HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
4-Hydroxybenzoic Acid → Benzoic acid, 4-(acetyloxy)-
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | 4-Hydroxybenzoic Acid | HCID 135 | — |
| Edukt | Acetyl chloride | HCID 6367 | — |
| Lösungsmittel | Benzene | HCID 241 | — |
| Produkt | Benzoic acid, 4-(acetyloxy)- | HCID 16865 | — |
Reaktionsschritte
A solution of 20 g. of 4-hydroxybenzoic acid in 200 ml. of benzene and 40 ml. of acetyl chloride is refluxed for 3 hours. Solvent and excess acetyl chloride are evaporated. The mixture is dissolved in methanol (150 ml.) and water (20 ml.) added; after 15 minutes, addition of more water results in the precipitation of 4-acetoxy benzoic acid, m.p. 192°-193° C.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US04151297 |
| Quelldatensatz | uspto-grants-1979_04 |
| ORD ID | ord-97e6103d3157480888b34d018a955edc |
| Quellennotiz | uspto-grants-1979_04 |