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Ethyl bromoacetate → Ethyl 2-(2-acetyl-4-bromophenoxy)acetate
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Ethyl bromoacetate | HCID 7748 | — |
| 反応物 | Potassium Carbonate | HCID 11430 | — |
| 反応物 | 5'-Bromo-2'-hydroxyacetophenone | HCID 95991 | — |
| 溶媒 | Acetone | HCID 180 | — |
| 溶媒 | Chloroform | HCID 6212 | — |
| 生成物 | Ethyl 2-(2-acetyl-4-bromophenoxy)acetate | HCID 19261366 | 90.2% |
反応手順
13.31 g of 2-acetyl-4-bromophenol, 11.0 g of ethyl bromoacetate and 9.7 g of anhydrous potassium carbonate were refluxed under heating in 70 ml of acetone for 2 hours. Insoluble materials were removed by filtration, and the resulting filtrate was concentrated and dried. The residue thus obtained was dissolved in chloroform, washed with water, and then dried to remove the solvent. The thus treated residue was washed with a mixed solvent system of ethanol and n-hexane to isolate insoluble crystals by filtration. In this way, 16.82 g of ethyl (2-acetyl-4-bromophenyl)oxyacetate was obtained in the form of colorless plate crystals.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US05620991 |
| 出典データセット | uspto-grants-1997_04 |
| ORD ID | ord-2031b461fb474e2485dbe138cd102dc3 |
| 出典メモ | uspto-grants-1997_04 |