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Methanol → 2-Methoxypyrrolidine-1-carbaldehyde
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Methanol | HCID 887 | — |
| 反応物 | 1-Pyrrolidinecarboxaldehyde | HCID 77372 | — |
| 触媒 | Tetramethylammonium tetrafluoroborate | HCID 12621 | — |
| 生成物 | 2-Methoxypyrrolidine-1-carbaldehyde | HCID 12478171 | 86.7% |
反応手順
In the same manner as indicated in Example 5 there are electrolyzed 17.7 g of N-formylpyrrolidine and 57.2 g of methanol in the presence of 0.29 g of tetramethylammonium tetrafluoroborate as conducting salt. In this case, however, the current is switched off after the throughput of already 2.0 Faraday per mol of N-formylpyrrolidine. The calculated mean cell voltage is 28.8 volts. Work-up of the electrolysis solution gives 20.0 g of 1-formyl-2-methoxypyrrolidine (boiling point 39°-40° C./0.1 mbar; nD25 =1.4700), which corresponds to a product yield of 86.6% and a current efficiency of 86.6%.
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-22e5d01d694a4a47b6ade35b2b0b7bd8 |
| 出典メモ | uspto-grants-1979_04 |