化工社化工社 化学情報印刷レポート · 研究参考用
Thiophene-3,4-dicarboxylic acid → 1H,3H-Thieno[3,4-c]furan-1,3-dione
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Thiophene-3,4-dicarboxylic acid | HCID 255853 | — |
| 溶媒 | Acetic Anhydride | HCID 7918 | — |
| 生成物 | 1H,3H-Thieno[3,4-c]furan-1,3-dione | HCID 315608 | 98% |
反応手順
Thiophene-3,4-dicarboxylic acid (12 g, 0.07 mol) is dissolved in acetic anhydride (60 ml) and boiled for 2.5 hours. The mixture is then concentrated to dryness. There is obtained 10.55 g (98%) of thiophene-3,4-dicarboxylic anhydride (m.p. 147°-149° C.).
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US05201934 |
| 出典データセット | uspto-grants-1993_04 |
| ORD ID | ord-b073349783274fb6b45169435b736399 |
| 出典メモ | uspto-grants-1993_04 |