関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|
| 反応物 | Acetic Acid | HCID 176 | — |
| 反応物 | Tetraethyl orthocarbonate | HCID 66213 | — |
| 反応物 | HCID 178418614 | HCID 178418614 | — |
| 溶媒 | 1,4-Dioxane | HCID 31275 | — |
| 生成物 | HCID 178418570 | HCID 178418570 | — |
反応手順
The pale brown syrup (8.58 g) obtained in Example (57a) was dissolved in dioxane (20 ml). To the solution were added tetraethoxymethane (8.64 g) and acetic acid (1.56 g). The mixture was stirred for 2 hours at 100° C. The reaction mixture was concentrated to dryness. The residue was crystallized from ethyl acetate (50 ml). Resulting crystalline precipitates were collected by filtration to obtain the title compound.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| 特許番号 | US05243054 |
|---|
| 出典データセット | uspto-grants-1993_09 |
|---|
| ORD ID | ord-e6e2a39337d44b93874b16d5ca671d7a |
|---|
| 出典メモ | uspto-grants-1993_09 |
|---|
