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Methanol → 3-Methyl-2,3-dihydrobenzofuran-4-amine
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Methanol | HCID 887 | — |
| 反応物 | Lithium Hydroxide | HCID 3939 | — |
| 反応物 | Tetrahydrofuran | HCID 8028 | — |
| 反応物 | 2,2,2-Trifluoro-N-(3-methyl-2,3-dihydro-1-benzofuran-4-yl)acetamide | HCID 57763285 | — |
| 溶媒 | Water | HCID 962 | — |
| 生成物 | 3-Methyl-2,3-dihydrobenzofuran-4-amine | HCID 54326406 | 92.6% |
反応手順
To a stirred solution of Intermediate 24 (0.087 g) in 2:2:1 tetrahydrofuran:methanol:water (5 ml) was added lithium hyroxide (0.149 g) and the mixture stirred at room temperature for 47 h, then at 60° C. for 2.5 h. The solvent was removed in vacuo and the residue partitioned between ethyl acetate and water. The aqueous layer was re-extracted with dichloromethane and the combined organic layers dried over sodium sulphate and concentrated in vacuo to give the title compound as a colourless oil (0.049 g).
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US07566786B2 |
| 出典データセット | uspto-grants-2009_07 |
| ORD ID | ord-d19e96b5ee8d4e5d9df787ed25d61f4d |
| 出典メモ | uspto-grants-2009_07 |