Sodium hydride → HCID 20361951、化合物
反応式
[CH3:1][C:2]1[N:3]=[N:4][C:5](=[O:9])[C:6]=1[CH2:7][CH3:8].[H-].[Na+].[CH3:12][CH:13](Cl)[C:14]1[CH:19]=[CH:18][C:17]([Cl:20])=[C:16]([Cl:21])[CH:15]=1>CN(C)C=O>[CH3:1][C:2]1[NH:3][N:4]([CH:13]([CH3:12])[C:14]2[CH:19]=[CH:18][C:17]([Cl:20])=[C:16]([Cl:21])[CH:15]=2)[C:5](=[O:9])[C:6]=1[CH2:7][CH3:8]参加物
5
反応条件
- 温度
- 60 °C
実験手順
25.2 g of 3-methyl-4-ethylpyrazol-5-one were added in portions to a suspension of 10.0 g (0.22 mol) of sodium hydride in 200 ml of absolute dimethylformamide. After the evolution of H2 had ceased, 41.8 g (0.2 mol) of α-methyl-3,4-dichlorobenzyl chloride were added dropwise to the reaction solution. The mixture was then stirred for 2 hours at 60° C, the solvent was distilled off in vacuo and the residue was taken up in water and acidified with dilute acetic acid. The crude product thereby obtained was recrystallized from ethanol.
後処理
- distillationthe solvent was distilled off in vacuo
出典と根拠
- ORDレコード
- ord-d82d97cff80a4683ba038232080c7cc8
- 出典データセット
- uspto-grants-1978_03
- 特許番号
- US04081596
反応ノート
読み込み中…