HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
4-Hydroxybenzoic Acid → Benzoic acid, 4-hydroxy-, 2-methylbutyl ester
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | 4-Hydroxybenzoic Acid | HCID 135 | — |
| Edukt | Sulfuric Acid | HCID 1118 | — |
| Edukt | (S)-2-methyl-1-butanol | HCID 2723602 | — |
| Lösungsmittel | Toluene | HCID 1140 | — |
| Produkt | Benzoic acid, 4-hydroxy-, 2-methylbutyl ester | HCID 13530949 | 88,1% |
Reaktionsschritte
0.29 mole(40.0 g) of 4-hydroxybenzoic acid and 0.35 mole(30.9 g) of (S)-(-)-2-methylbutanol were refluxed for 20 hours in 150 ml of toluene in the presence of 1 ml of conc. sulfuric acid. The reaction solution was concentrated, and then purified by column chromatography to obtain 53.2 g of 4-hydroxybenzoic acid 2-methylbutyl ester [[α]D23 =+4.95°(CHCl3)]. (yield: 88%)
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US04844835 |
| Quelldatensatz | uspto-grants-1989_07 |
| ORD ID | ord-469b52153c964ebba05ae7f9953356b8 |
| Quellennotiz | uspto-grants-1989_07 |