化工社化工社 化学情報印刷レポート · 研究参考用
4-Nitrophenol → 6-nitro-3,4-dihydro-2H-1-benzopyran-4-one
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | 4-Nitrophenol | HCID 980 | — |
| 反応物 | Acrylic Acid | HCID 6581 | — |
| 反応物 | Phenothiazine | HCID 7108 | — |
| 反応物 | Hydrofluoric Acid | HCID 14917 | — |
| 生成物 | 6-nitro-3,4-dihydro-2H-1-benzopyran-4-one | HCID 5228831 | — |
反応手順
Following the same procedure as Example 1, p-nitrophenol (34.8 grams), acrylic acid (27 grams), and an inhibitor, phenothiazine (0.02 grams) was added to the pressure reactor. The anhydrous hydrogen fluoride (110 grams) was added before the system was warmed. When the reaction temperature was attained, a pressure of 140 psig was noted, similar to previous reactions. Work-up was carried out as previous examples and the 6-Nitro-4-Chromanone was isolated and characterized.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US04992564 |
| 出典データセット | uspto-grants-1991_02 |
| ORD ID | ord-da5d1197fd644d779e21cbae81c0ff80 |
| 出典メモ | uspto-grants-1991_02 |