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2,3-Diaminonaphthalene → Benzo(g)quinoxalin-2(1H)-one, 3-(3,4-dihydroxy-5-nitrophenyl)-
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | 2,3-Diaminonaphthalene | HCID 69872 | — |
| 反応物 | Benzeneacetic acid, 3,4-dihydroxy-5-nitro-alpha-oxo-, hexyl ester | HCID 5747978 | — |
| 溶媒 | Methanol | HCID 887 | — |
| 溶媒 | 1-Hexanol | HCID 8103 | — |
| 生成物 | Benzo(g)quinoxalin-2(1H)-one, 3-(3,4-dihydroxy-5-nitrophenyl)- | HCID 135624013 | — |
反応手順
A solution of 1.07 g of n-hexyl 3,4-dihydroxy-5-nitrophenylglyoxylate and 696.3 mg of 2,3-diaminonaphthalene in 3 ml of 1-hexanol is heated to boiling under reflux for 3 hours. The reaction mixture is then cooled and diluted with methanol. The crude product is filtered under suction and recrystallized from N,N-dimethylformamide/water. There is obtained 3-(3,4-dihydroxy-5-nitrophenyl)benzo[g]quinoxalin-2(1H)-one of m.p. >300°.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US05705703 |
| 出典データセット | uspto-grants-1998_01 |
| ORD ID | ord-a8ac8e0b4ad94140a818b648ff690a0e |
| 出典メモ | uspto-grants-1998_01 |