HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
p-Toluenesulfonic acid → 6-Acetoxy-2-naphthyl-alpha-methylacetic acid
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | p-Toluenesulfonic acid | HCID 6101 | — |
| Edukt | Acetic Anhydride | HCID 7918 | — |
| Edukt | Desmethylnaproxen | HCID 162920 | — |
| Produkt | 6-Acetoxy-2-naphthyl-alpha-methylacetic acid | HCID 20335192 | — |
Reaktionsschritte
A mixture of 2.2 g. of 6-hydroxy-2-naphthyl-α-methylacetic acid, 50 ml. of acetic anhydride, and 100 mg. of p-toluenesulfonic acid is stirred for four hours at 50° C. The mixture is evaporated, water is added, and the mixture is extracted with diethyl ether which is washed with water to neutrality, dried over sodium sulfate, and evaporated to yield 6-acetoxy-2-naphthyl-α-methylacetic acid.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US04207241 |
| Quelldatensatz | uspto-grants-1980_06 |
| ORD ID | ord-82dfb422a80b4955bd65941467579a11 |
| Quellennotiz | uspto-grants-1980_06 |