関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|
| 反応物 | Water | HCID 962 | — |
| 反応物 | Sodium Hydroxide | HCID 14798 | — |
| 反応物 | Aluminium lithium hydride | HCID 21226445 | — |
| 反応物 | 3-[4-Methyl-2-(4-trifluoromethyl-phenyl)-thiazol-5-yl]-propionic acid ethyl ester | HCID 69279693 | — |
| 溶媒 | Tetrahydrofuran | HCID 8028 | — |
| 生成物 | 3-[4-Methyl-2-(4-trifluoromethyl-phenyl)-thiazol-5-yl]-propan-1-ol | HCID 23614487 | 69% |
反応手順
A solution of 3-[4-methyl-2-(4-trifluoromethyl-phenyl)-thiazol-5-yl]-propionic acid ethyl ester (470 mg, 1.4 mmol) in tetrahydrofuran (5 ml) was added to a suspension of lithium aluminum hydride (53 mg, 1.4 mmol) in tetrahydrofuran (5 ml) under an argon atmosphere at ambient temperature within 5 min. The mixture was stirred for 5 h, cooled to 0° C. and treated cautiously with water (5 ml) and 10% aqueous NaOH (1 ml). The reaction mixture was filtered over celite, ice water/ethyl acetate 1/1 was added and the layers were separated. The aqueous layer was extracted one more time with ethyl acetate, the combined organic layers were washed with ice water/brine 1/1 and dried over sodium sulfate. Removal of the solvent under reduced pressure gave a yellow oil which was purified by column chromatography (silica gel, heptane/AcOEt) to yield 285 mg (950 μmol, 69%) of the title compound as colorless oil.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| 特許番号 | US07235572B2 |
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| 出典データセット | uspto-grants-2007_06 |
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| ORD ID | ord-61c6d8e858914f298ec579be14178bb8 |
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| 出典メモ | uspto-grants-2007_06 |
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