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Dibenzoylmethane → Tribenzoylmethane
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Dibenzoylmethane | HCID 8433 | — |
| 反応物 | Ethyl Acetoacetate | HCID 8868 | — |
| 反応物 | Acetyl fluoride | HCID 11204 | — |
| 反応物 | Benzoyl fluoride | HCID 67999 | — |
| 反応物 | Ethyl 2-oxocyclopentanecarboxylate | HCID 69136 | — |
| 反応物 | 3-Methyl-2,4-pentanedione | HCID 69949 | — |
| 反応物 | Ethyl 2-acetylacetoacetate | HCID 79063 | — |
| 反応物 | 2,4-Pentanedione, 3-acetyl-3-methyl- | HCID 12131181 | — |
| 反応物 | 2-Acetyl-2-carbethoxycyclopentanone | HCID 21438948 | — |
| 生成物 | Tribenzoylmethane | HCID 413869 | — |
| 生成物 | 2-Benzoyl-1-phenyl-1,3-butanedione | HCID 786313 | — |
反応手順
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.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US04020073 |
| 出典データセット | uspto-grants-1977_04 |
| ORD ID | ord-ace45aea84a44b808e0328f82d8e5541 |
| 出典メモ | uspto-grants-1977_04 |