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Pyrazole → 1-(naphthalen-1-yl)-1H-pyrazole
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Pyrazole | HCID 1048 | — |
| 反応物 | 1-Iodonaphthalene | HCID 7004 | — |
| 反応物 | Cesium carbonate | HCID 10796 | — |
| 触媒 | Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI) | HCID 24350 | — |
| 溶媒 | Dimethylformamide | HCID 6228 | — |
| 生成物 | 1-(naphthalen-1-yl)-1H-pyrazole | HCID 647305 | — |
反応手順
A mixture of 1H-pyrazole (300 mg, 4.4 mmol), iodonaphthalene (1.1 g, 4.4 mmol), copper (I) iodide (126 mg, 0.66 mmol), Cs2CO3 (2.15 g, 6.6 mmol) in DMF (5 mL) was evacuated and filled with nitrogen twice. The reaction was then stirred at room temperature for 30 minutes and then at 120° C. for 2 days. The reaction mixture was then cooled to room temperature, diluted with ethyl acetate, filtered through silica gel and concentrated to give 1-(naphthalen-1-yl)-1H-pyrazole as pure solid. (800 mg, 93%).
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US08372807B2 |
| 出典データセット | uspto-grants-2013_02 |
| ORD ID | ord-bd1102cf020049879ce49d89a44449ac |
| 出典メモ | uspto-grants-2013_02 |