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Methanol → 1-(3'-Trifluoromethylbenzoyl)-2-methoxypiperidine
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Methanol | HCID 887 | — |
| 反応物 | 1-[3-(Trifluoromethyl)benzoyl]piperidine | HCID 2980140 | — |
| 触媒 | Tetramethylammonium tetrafluoroborate | HCID 12621 | — |
| 生成物 | 1-(3'-Trifluoromethylbenzoyl)-2-methoxypiperidine | HCID 21322855 | 88.2% |
反応手順
In the same manner as in Example 5, there are electrolyzed 13.5 g of 1-(3'-trifluoromethylbenzoyl)-piperidine and 84.1 g of methanol in the presence of 0.11 g of tetramethylammonium tetrafluoroborate as conducting salt. After throughput of 2.5 Faraday per mol of 1-(3'-trifluoromethylbenzoyl)-piperidine the current is switched off. The calculated mean cell voltage is 34.1 volts. Work-up of the electrolysis solution gives 13.3 g of 1-(3'-trifluoromethylbenzoyl)-2-methoxypiperidine (boiling point 75°-80° C./0.2 mm Hg; nD25 =1.4905) are obtained which corresponds to a product yield of 88.2% and a current efficiency of 70.6%.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US04149941 |
| 出典データセット | uspto-grants-1979_04 |
| ORD ID | ord-adaef25251024d3cb922b10bf853c6e7 |
| 出典メモ | uspto-grants-1979_04 |