関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|
| 反応物 | Potassium Sodium Tartrate | HCID 9357 | — |
| 反応物 | Aluminum;lithium | HCID 16211445 | — |
| 反応物 | ethyl 1-isopropyl-1H-pyrazole-3-carboxylate | HCID 23005998 | — |
| 溶媒 | Diethyl Ether | HCID 3283 | — |
| 溶媒 | Tetrahydrofuran | HCID 8028 | — |
| 生成物 | (1-(propan-2-yl)-1H-pyrazol-3-yl)methanol | HCID 23005538 | 54% |
反応手順
Commercially available ethyl 1-isopropyl-1H-pyrazole-3-carboxylate was dissolved in diethyl ether, the solution was cooled to 0° C., and a 1M lithium aluminum solution in tetrahydrofuran was added. After stirring for 3 hours, the reaction mixture was poured into a cold 30% aqueous Rochelle's salt solution and was allowed to stir for one hour. The resulting mixture was extracted twice with diethyl ether. The combined organic extracts were washed with 10% aqueous potassium carbonate solution and brine, dried over sodium sulfate, and concentrated under reduced pressure to yield the desired compound (54% yield).
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| 特許番号 | US09174981B2 |
|---|
| 出典データセット | uspto-grants-2015_11 |
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| ORD ID | ord-d567bbe7504a457190e71362a7d54f70 |
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| 出典メモ | uspto-grants-2015_11 |
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