化工社化工社 化学情報印刷レポート · 研究参考用
4-Chlorophenol → Quinizarin
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | 4-Chlorophenol | HCID 4684 | — |
| 反応物 | 1,4,5,8-Tetrahydroxy-9,10-anthracenedione | HCID 6686 | — |
| 反応物 | Phthalic Anhydride | HCID 6811 | — |
| 触媒 | Boron | HCID 5462311 | — |
| 溶媒 | Fuming sulfuric acid | HCID 24681 | — |
| 生成物 | Quinizarin | HCID 6688 | — |
反応手順
The present invention relates to a process for the production of 1,4,5,8-tetrahydroxyanthraquinone (hereinafter referred to as diquinizarine) by reacting phthalic anhydride with p-chlorophenol in oleum and in the presence of boron catalysts to give the boron complex of 1,4-dihydroxyanthraquinone, and then chlorinating this boron complex direct with chlorinating agents, in the same reaction medium, to give the boron complex of 5,8-dichloro-1,4-dihydroxyanthraquinone, and subsequently hydrolysing this chlorinated boron complex to diquinizarine.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US04645626 |
| 出典データセット | uspto-grants-1987_02 |
| ORD ID | ord-7730aea525044608bb2f78f4cd3c1841 |
| 出典メモ | uspto-grants-1987_02 |