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Hydrochloric Acid → 2,3-Dimethoxy-naphthacene-5,12-dione
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Hydrochloric Acid | HCID 313 | — |
| 反応物 | Methanol | HCID 887 | — |
| 反応物 | Potassium Carbonate | HCID 11430 | — |
| 反応物 | 2,3-Difluoronaphthacene-5,12-dione | HCID 20089834 | — |
| 溶媒 | Dimethyl Sulfoxide | HCID 679 | — |
| 生成物 | 2,3-Dimethoxy-naphthacene-5,12-dione | HCID 11174575 | — |
反応手順
1 g (3.4 mmol) of 2,3-difluoro-naphthacene-5,12-dione, 0.94 g (6.8 mmol) of K2CO3, 2.18 g of methanol and 20 ml of DMSO are stirred at 110° C. for 22 hours. The mixture is poured onto dilute hydrochloric acid. The product is filtered off, washed four times with water, dried and recrystallized from CH2Cl2 /pentane; yield 0.72 g (67%); melting point >250° C.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US05391749 |
| 出典データセット | uspto-grants-1995_02 |
| ORD ID | ord-e5097bd68377463983c1e1c315f75eae |
| 出典メモ | uspto-grants-1995_02 |