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Triethylamine → 1-[4-(Methylsulfonyl)phenyl]-3-methylpentane-1,4-dione
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Triethylamine | HCID 8471 | — |
| 反応物 | Methyl isopropenyl ketone | HCID 13143 | — |
| 反応物 | 4-(Methylsulfonyl)benzaldehyde | HCID 220376 | — |
| 触媒 | 3-Benzyl-5-(2-hydroxyethyl)-4-methylthiazolium chloride | HCID 2833352 | — |
| 溶媒 | Ethanol | HCID 702 | — |
| 生成物 | 1-[4-(Methylsulfonyl)phenyl]-3-methylpentane-1,4-dione | HCID 21862839 | 4.3% |
反応手順
To a stirred solution of 4-(methylsulfonyl)benzaldehyde (1.84 g, 10 mmol) in ethanol (8 mL) was added 3-methyl-3-buten-2-one (0.8 g, 9.5 mmol), 3-benzyl-5-(2-hydroxyethyl)4-methylthiazolium chloride (0.51 g, 1.9 mmol), and Et3N (2.65 mL, 19 mmol) at room temperature. After stirring for 3 hours, volatiles were removed by evaporation. The residue was purified by flash chromatography on silica gel eluting with ethyl acetate/hexane (1/2) to provide the subtitle compound (0.11 g).
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US06949536B2 |
| 出典データセット | uspto-grants-2005_09 |
| ORD ID | ord-e10ed4ece8f342968dfb5394edfe7316 |
| 出典メモ | uspto-grants-2005_09 |