化工社化工社 化学情報印刷レポート · 研究参考用
Ethyl Acetoacetate → 3H-Pyrazol-3-one, 2,4-dihydro-5-methyl-2-(4-nitrophenyl)-
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Ethyl Acetoacetate | HCID 8868 | — |
| 反応物 | 4-Nitrophenylhydrazine hydrochloride | HCID 5463401 | — |
| 溶媒 | Ethanol | HCID 702 | — |
| 生成物 | 3H-Pyrazol-3-one, 2,4-dihydro-5-methyl-2-(4-nitrophenyl)- | HCID 80816 | — |
反応手順
1.63 g of p-nitrophenylhydrazine hydrochloride and 1.26 g of ethyl acetoacetate are heated under reflux in 30 ml of ethanol for 45 min. The mixture is concentrated somewhat in vacuo. The crystals which have separated out are then filtered off with suction.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US05869516 |
| 出典データセット | uspto-grants-1999_02 |
| ORD ID | ord-9708b4ea09704412845a368f792b6756 |
| 出典メモ | uspto-grants-1999_02 |