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Methanol → Anthraquinone
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Methanol | HCID 887 | — |
| 反応物 | Potassium Carbonate | HCID 11430 | — |
| 反応物 | 1-Amino-4-bromo-9,10-dioxo-9,10-dihydroanthracene-2-carboxylic acid | HCID 271593 | — |
| 反応物 | 4-(4'-beta-Hydroxyethylsulfonylphenoxy)thiophenol | HCID 19737697 | — |
| 溶媒 | 1,2-Dichlorobenzene | HCID 7239 | — |
| 生成物 | Anthraquinone | HCID 6780 | — |
反応手順
1-Amino-2-carboxy-4-bromoanthraquinone (6.9 parts) and 4-(4'-β-hydroxyethylsulfonylphenoxy)thiophenol (6.5 parts) were allowed to react with each other at 100° to 120° C. in 0-dichlorobenzene in the presence of cuprous chloride and potassium carbonate. Thereafter, methanol was added to the reaction mixture to deposit solids, which were collected on a filter, washed throughly with methanol and water and then dried at 80° C. The resulting product was subjected to sulfonation and esterification simultaneously at 20° to 40° C. in 14% oleum. Thereafter, ice was added thereto, the solids deposited were collected on a filter, thereby obtaining an anthraquinone compound of the following formula (free acid form). ##STR383##
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US05112971 |
| 出典データセット | uspto-grants-1992_05 |
| ORD ID | ord-2355d823ccc34be098d97875345f48ed |
| 出典メモ | uspto-grants-1992_05 |