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 mol (40.0 g) of p-hydroxybenzoic acid and 0.35 mol (30.9 g) of (S)-(-)-2-methylbutanol were refluxed for 20 hours in 150 ml of toluene in the presence of 1 ml of concentrated sulfuric acid. The reaction solution was concentrated and then purified by column chromatography to obtain 53.2 g of 2-methylbutyl p-hydroxybenzoate [[α]D23 =+4.95° (CHCl3)]. (Yield: 88%)
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US05269963 |
| Quelldatensatz | uspto-grants-1993_12 |
| ORD ID | ord-0d3bd3927e224cca824885a3a92f8176 |
| Quellennotiz | uspto-grants-1993_12 |