HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
Methyl acetoacetate → 3-Furancarboxylic acid, 2,5-dimethyl-, methyl ester
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | Methyl acetoacetate | HCID 7757 | — |
| Edukt | 2-(Acetyloxy)propanal | HCID 90728 | — |
| Katalysator | Iron | HCID 23925 | — |
| Lösungsmittel | Methanol | HCID 887 | — |
| Produkt | 3-Furancarboxylic acid, 2,5-dimethyl-, methyl ester | HCID 80248 | — |
Reaktionsschritte
27 parts by weight of iron-III chloride and 149 parts by weight of 85.5 percent strength α-acetoxypropionaldehyde are added to a solution of 116 parts by weight of methyl acetoacetate in 120 parts by weight of methanol at a rate such that the mixture rises to the boil. The methanol is distilled off under atmospheric pressure and the product is then distilled under reduced pressure. 106.2 parts by weight of 2,5-dimethylfuran-3-carboxylic acid methyl ester, of boiling point 89° C./20 mbar, are obtained.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US04207243 |
| Quelldatensatz | uspto-grants-1980_06 |
| ORD ID | ord-c8642babbd0f4c62b60da3f1892d1dd2 |
| Quellennotiz | uspto-grants-1980_06 |