HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
Dibenzoylmethane → Tribenzoylmethane
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | Dibenzoylmethane | HCID 8433 | — |
| Edukt | Ethyl Acetoacetate | HCID 8868 | — |
| Edukt | Acetyl fluoride | HCID 11204 | — |
| Edukt | Benzoyl fluoride | HCID 67999 | — |
| Edukt | Ethyl 2-oxocyclopentanecarboxylate | HCID 69136 | — |
| Edukt | 3-Methyl-2,4-pentanedione | HCID 69949 | — |
| Edukt | Ethyl 2-acetylacetoacetate | HCID 79063 | — |
| Edukt | 2,4-Pentanedione, 3-acetyl-3-methyl- | HCID 12131181 | — |
| Edukt | 2-Acetyl-2-carbethoxycyclopentanone | HCID 21438948 | — |
| Produkt | Tribenzoylmethane | HCID 413869 | — |
| Produkt | 2-Benzoyl-1-phenyl-1,3-butanedione | HCID 786313 | — |
Reaktionsschritte
When the thallous salts of ethyl acetoacetate, 2 -carbethoxycyclopentanone, and 3-methylpentane-2,4-dione, prepared according to Example 1, are treated with acetyl fluoride at room temperature as described in Example 4, ethyl 2-acetylacetoacetate, 2-acetyl-2-carbethoxycyclopentanone, and 3-acetyl-3-methylpentane-2,4-dione, respectively, are obtained in 95% yield. Tribenzoylmethane is prepared by treating the thallous salt of dibenzoylmethane with benzoyl fluoride in the same manner. Acetyldibenzoylmethane is prepared by treating the thallous salt of dibenzoylmethane with acetyl fluoride.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US04020073 |
| Quelldatensatz | uspto-grants-1977_04 |
| ORD ID | ord-ace45aea84a44b808e0328f82d8e5541 |
| Quellennotiz | uspto-grants-1977_04 |