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Ethyl 6-acetyl-1,4-benzodioxin-2-carboxylate → Ethyl 6-ethyl-2,3-dihydro-1,4-benzodioxin-2-carboxylate
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Ethyl 6-acetyl-1,4-benzodioxin-2-carboxylate | HCID 11806994 | — |
| 触媒 | Palladium | HCID 23938 | — |
| 溶媒 | Acetic Acid | HCID 176 | — |
| 生成物 | Ethyl 6-ethyl-2,3-dihydro-1,4-benzodioxin-2-carboxylate | HCID 15210220 | 70% |
反応手順
Hydrogenate a solution of 3 g of ethyl 6-acetyl-1,4-benzodioxin-2-carboxylate in 15 cm3 of acetic acid under hydrogen pressure (50 psi) in the presence of 0.750 g of 5% palladium on carbon. The crude product obtained by concentrating to dryness is purified by chromatography on a silica column (eluant: petroleum ether/diethyl ether, 70:30). Ethyl 6-ethyl-2,3-dihydro-1,4-benzodioxin-2-carboxylate is thereby obtained in a yield of 70%. ##STR31##
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US05439909 |
| 出典データセット | uspto-grants-1995_08 |
| ORD ID | ord-01076608197e499bb86bd9c9e0dc187d |
| 出典メモ | uspto-grants-1995_08 |