関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|
| 反応物 | Diethyl Oxalate | HCID 7268 | — |
| 反応物 | Sodium ethoxide | HCID 2723922 | — |
| 反応物 | 5-[(Tert-butyldimethylsilyl)oxy]pentan-2-one | HCID 10680263 | — |
| 生成物 | Ethyl 7-[(tert-butyldimethylsilyl)oxy]-2,4-dioxoheptanoate | HCID 54073086 | 16.6% |
反応手順
Diethyl oxalate (4.048 g, 37.7 mmol) was added to solid sodium ethoxide (0.472 g, 69.3 mmol) at 0° C. followed by slow addition of 5-(tert-butyl-dimethyl-silanyloxy)-pentan-2-one (1.500 g, 69.3 mmol). The resulting orange solution was stirred at 0° C. for 10 minutes and at room temperature for 3 h. Purification by flash chromatography (19:1 hexanes:EtOAc to 9:1 EtOAc:MeOH) provided the title compound (1.982 g); MS 317 (M+1).
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| 特許番号 | US06649657B2 |
|---|
| 出典データセット | uspto-grants-2003_11 |
|---|
| ORD ID | ord-07290632b6924299af372683a099f3f3 |
|---|
| 出典メモ | uspto-grants-2003_11 |
|---|
