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Acetic Anhydride → 1-Triphenylmethyl-3,5-diacetoxymethylpyrazole
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Acetic Anhydride | HCID 7918 | — |
| 反応物 | Triethylamine | HCID 8471 | — |
| 反応物 | Sodium Hydroxide | HCID 14798 | — |
| 反応物 | 1-Trityl-3,5-bis(hydroxymethyl)pyrazole | HCID 12377532 | — |
| 生成物 | 1-Triphenylmethyl-3,5-diacetoxymethylpyrazole | HCID 12377533 | — |
反応手順
A solution of 19.5 g. (0.053 mol) of the end product of Example 19, 90 ml.of acetic anhydride and 20 ml. of Et3N was stirred at room temperature for 2.5 hours. After pouring into 1 N NaOH, the solution was extracted with CH2Cl2. The organic phase was dried (MgSO4), concentrated and the residue recrystallized from CH3OH to give the end product. The analytical sample was prepared from the same solvent; colorless plates; mp 119°-121°.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US04157331 |
| 出典データセット | uspto-grants-1979_06 |
| ORD ID | ord-afd001a5b23040c2b9af7d90e6d92445 |
| 出典メモ | uspto-grants-1979_06 |