Acetic Anhydride → HCID 21252794、化合物
反応式
[OH:1][CH:2]1[CH2:7][O:6][C:5]([C:8]2[CH:13]=[CH:12][CH:11]=[C:10]([C:14]([F:17])([F:16])[F:15])[CH:9]=2)=[N:4][N:3]1[C:18]([NH:20][C:21]1[CH:26]=[CH:25][C:24]([C:27]([F:30])([F:29])[F:28])=[CH:23][CH:22]=1)=[O:19].C(N(CC)CC)C.[C:38](OC(=O)C)(=[O:40])[CH3:39]>ClCCl>[C:38]([O:1][CH:2]1[CH2:7][O:6][C:5]([C:8]2[CH:13]=[CH:12][CH:11]=[C:10]([C:14]([F:17])([F:16])[F:15])[CH:9]=2)=[N:4][N:3]1[C:18]([NH:20][C:21]1[CH:26]=[CH:25][C:24]([C:27]([F:30])([F:28])[F:29])=[CH:23][CH:22]=1)=[O:19])(=[O:40])[CH3:39]参加物
5
実験手順
A mixture of 21.0 g 5,6-dihydro-5-hydroxy-2-[3-(trifluoromethyl)phenyl]-N-[4-(trifluoromethyl)phenyl]-4H-1,3,4-oxadiazine-4-carboxamide (prepared in C above), 13.0 ml triethylamine, and 6.5 ml acetic anhydride was stirred at room temperature for 3 h. The mixture was then concentrated under vacuum to produce a solid residue. The solid residue was taken up in 400 ml dichloromethane and washed twice with 100 ml saturated sodium bicarbonate. The organic phase was then dried over sodium sulfate and concentrated under vacuum to produce 5,6-dihydro-5-acetyloxy-2-[3-(trifluoromethyl)phenyl]-N-[4-(trifluoromethyl)phenyl]-4H-1,3,4-oxadiazine-4-carboxamide. The structure was confirmed by 1H NMR.
後処理
- concentrationThe mixture was then concentrated under vacuum
- customto produce a solid residue
- washwashed twice with 100 ml saturated sodium bicarbonate
- dry with materialThe organic phase was then dried over sodium sulfate
- concentrationconcentrated under vacuum
出典と根拠
- ORDレコード
- ord-68bedede1c33422aa8ce22b6e0f6e14a
- 出典データセット
- uspto-grants-2001_03
- 特許番号
- US06197766B1
反応ノート
読み込み中…