HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
4-Hydroxybenzaldehyde → Benzaldehyde, 4-(phenylmethoxy)-
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | 4-Hydroxybenzaldehyde | HCID 126 | — |
| Edukt | Potassium Iodide | HCID 4875 | — |
| Edukt | Dimethylformamide | HCID 6228 | — |
| Edukt | Potassium Carbonate | HCID 11430 | — |
| Lösungsmittel | Water | HCID 962 | — |
| Lösungsmittel | Ethyl Acetate | HCID 8857 | — |
| Produkt | Benzaldehyde, 4-(phenylmethoxy)- | HCID 78109 | 95% |
Reaktionsschritte
To a stirred mixture of 4-hydroxybenzaldehyde (28.2 g, 231 mmol), potassium carbonate (47.9 g, 35 mmol), potassium iodide and DMF(280 mL) benzyl bromide was added slowly at 0° C. The mixture was stirred at rt overnight. The mixture was diluted with EtOAc and water. The layers were separated and the aqueous layer was extracted with EtOAc. The combined organic layers were washed with 1N aq HCl and dried. The solution was concentrated to give 4-benzyloxybenzaldehyde (46.5 g, 95%). 1H NMR: (CDCl3, 400 MHZ) δ=5.15 (s, 2H), 7.06 (m, 2H), 7.42(m, 5H), 7.84(m, 2H), 9.89(s, 1H).
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US08835426B2 |
| Quelldatensatz | uspto-grants-2014_09 |
| ORD ID | ord-42ea015766b440f091058e5f05edbb7f |
| Quellennotiz | uspto-grants-2014_09 |