Acetyl chloride → HCID 19896706、化合物
反応式
[O:1]=[C:2]1[NH:7][C:6]2[CH:8]=[CH:9][C:10]([C:12](=[O:19])[CH:13]([CH3:18])[CH2:14][C:15]([OH:17])=[O:16])=[CH:11][C:5]=2[O:4][CH2:3]1.[C:20](Cl)(=O)C>CO>[O:1]=[C:2]1[NH:7][C:6]2[CH:8]=[CH:9][C:10]([C:12](=[O:19])[CH:13]([CH3:18])[CH2:14][C:15]([O:17][CH3:20])=[O:16])=[CH:11][C:5]=2[O:4][CH2:3]1参加物
4
実験手順
4-(3,4-Dihydro-3-oxo-1,4(2H)-benzoxazin-7-yl)-4-Oxo-3-methylbutyric acid (5 g) was suspended in methanol (50 ml) and acetyl chloride (0.5 ml) added. The mixture was heated on a steam bath until all of the solid dissolved. The solvent was evaporated at reduced pressure providing the ester as a white foam which was recrystallized from ethyl acetate-methanol to give the product as white crystals, yield 5 g, mp 95°-98° C.
後処理
- temperatureThe mixture was heated on a steam bath until all of the solid
- dissolutiondissolved
- customThe solvent was evaporated at reduced pressure
出典と根拠
- ORDレコード
- ord-0d9dfcf3a5f0431eba040eb878f71927
- 出典データセット
- uspto-grants-1993_06
- 特許番号
- US05221742
反応ノート
読み込み中…