関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|
| 反応物 | Water | HCID 962 | — |
| 反応物 | Lithium hydroxide, monohydrate | HCID 168937 | — |
| 反応物 | Methyl 4-[4-sulfonylchromanoyloxy]-2-methoxybenzoate | HCID 19691028 | — |
| 溶媒 | Tetrahydrofuran | HCID 8028 | — |
| 生成物 | 4-[4-Sulfonylchromanoyloxy]-2-methoxybenzoic acid | HCID 19690946 | — |
反応手順
To a stirred solution of methyl 4-[4-sulfonylchromanoyloxy]-2-methoxybenzoate (500 mg, 1.38 mmol) in THF:H2O (18 mL: 2 mL) was added LiOH.H2O (175 mg, 4.14 mmol). The reaction was heated to 45° C. over 12 h and then cooled to ambient temperature. The solvent was removed under reduced pressure. The crude solid was passed through a plug of silca gel packed in 50:50 MeOH:CH2Cl2 and eluted with same. The solvent was removed under reduced pressure to afford 4-[4-sulfonylchromanoyloxy]-2-methoxybenzoic acid as a white solid.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| 特許番号 | US05726172 |
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| 出典データセット | uspto-grants-1998_03 |
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| ORD ID | ord-46bdac7b5dca4dd2b9ea60dfb2c0fdfb |
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| 出典メモ | uspto-grants-1998_03 |
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