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Hydrochloric Acid → HCID 178418644、化合物
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Hydrochloric Acid | HCID 313 | — |
| 反応物 | Stearoyl chloride | HCID 8212 | — |
| 反応物 | Triethylamine | HCID 8471 | — |
| 反応物 | Tetronic acid | HCID 521261 | — |
| 触媒 | 4-(Dimethylamino)pyridine | HCID 14284 | — |
| 溶媒 | Dichloromethane | HCID 6344 | — |
| 溶媒 | Ethyl Acetate | HCID 8857 | — |
| 生成物 | HCID 178418644 | HCID 178418644 | 58% |
反応手順
To a stirring solution of 1.6 g (16 mmol) of tetronic acid in 75 mL of methylene chloride is added 2.5 mL (17.86 mmol) of triethylamine and 640 mg of 4-dimethylaminopyridine at 0° C. Next, 5.0 g (17.6 mmol) of stearoyl chloride is added and the reaction is stirred overnight at room temperature. The reaction is acidified with 1.0N HCl and extracted with two 100 mL portions of methylene chloride. The combined organic layers are dried over MgSO4 and concentrated in vacuo affording crude compound. Pure material was obtained by trituration with ethyl acetate as affording 3.3 g (58%) of 4-hydroxy-3-(1-oxooctadecyl)-2(5H)-furanone.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US05242945 |
| 出典データセット | uspto-grants-1993_09 |
| ORD ID | ord-86ae5c67c1df403db2f7cf7d7103c33f |
| 出典メモ | uspto-grants-1993_09 |