化工社化工社 化学情報印刷レポート · 研究参考用
Ethyl 2-Formylpropionate → 4-Methyl-1-(3,4-dichlorobenzyl)-pyrazol-5-one
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Ethyl 2-Formylpropionate | HCID 10898741 | — |
| 反応物 | HCID 20495842 | HCID 20495842 | — |
| 溶媒 | Ethanol | HCID 702 | — |
| 生成物 | 4-Methyl-1-(3,4-dichlorobenzyl)-pyrazol-5-one | HCID 23334400 | — |
反応手順
To a solution of 7.5 g of α-formylpropionic acid ethyl ester in 50 ml ethanol were added dropwise 10.9 g 3,4-dichlorobenzylhydrazine. After stirring overnight at room temperature, the solvent was distilled off in a vacuum and the solid residue was recrystallized from ethanol. m.p. 156° C., 9.3 g (64% of theory).
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US04032646 |
| 出典データセット | uspto-grants-1977_06 |
| ORD ID | ord-9088c4aaa69245df9c404df7496e1be9 |
| 出典メモ | uspto-grants-1977_06 |