Diethyl Oxalate → Stk848494
反応式
[NH2:1][C:2]1[S:3][C:4]2[CH:10]=[CH:9][CH:8]=[CH:7][C:5]=2[N:6]=1.[C:11](OCC)(=[O:17])[C:12]([O:14][CH2:15][CH3:16])=[O:13]>>[S:3]1[C:4]2[CH:10]=[CH:9][CH:8]=[CH:7][C:5]=2[N:6]=[C:2]1[NH:1][C:11](=[O:17])[C:12]([O:14][CH2:15][CH3:16])=[O:13]参加物
3
実験手順
A mixture of 2-aminobenzothiazole (5.0 g., 0.033 mol) and diethyl oxalate (50 ml.) is heated at reflux for 2.5 hours. A white solid precipitates from the cooled reaction mixture. The solid is recrystallized from ethanol (with a hot filtration) to give the desired product (3.72 g., m.p. 185°-186°, 44%).
後処理
- temperatureis heated
- temperatureat reflux for 2.5 hours
- customA white solid precipitates from the cooled reaction mixture
- customThe solid is recrystallized from ethanol (
- filtrationwith a hot filtration)
出典と根拠
- ORDレコード
- ord-af901c900f3c41d296dc87a9b6bb9c7e
- 出典データセット
- uspto-grants-1979_04
- 特許番号
- US04150140
反応ノート
読み込み中…