化工社化工社 化学情報印刷レポート · 研究参考用
Hydrochloric Acid → 4-Ethoxy-7-methylcoumarin
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Hydrochloric Acid | HCID 313 | — |
| 反応物 | Ethanol | HCID 702 | — |
| 反応物 | 4-Hydroxy-7-methylcoumarin | HCID 54685307 | — |
| 生成物 | 4-Ethoxy-7-methylcoumarin | HCID 688944 | 72% |
反応手順
Dry hydrogen chloride was passed through a solution of 4-hydroxy-7-methylcoumarin (14 g; 0.08 mole) in ethanol (300 ml) for 15 mins and the resulting solution was refluxed for 30 minutes. After cooling, the solvent was removed in vacuo and the residue recrystallized from ethanol to give 11.74 g (72%) of product of m.p. 142°-143° C.; (Found; C, 70.24; H, 5.95; C12H12O3 requires; C, 70.60; H, 5.88%).
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US04263299 |
| 出典データセット | uspto-grants-1981_04 |
| ORD ID | ord-ed20385ddde44873bbe343fb9dc39b19 |
| 出典メモ | uspto-grants-1981_04 |