Dimethyl Sulfate → 7-Chloro-2-methyl-3-trimethylammoniomethylimidazo[2,1-a]isoquinoline methylsulfate
反応式
[Cl:1][C:2]1[CH:11]=[CH:10][CH:9]=[C:8]2[C:3]=1[CH:4]=[CH:5][N:6]1[C:14]([CH2:15][N:16]([CH3:18])[CH3:17])=[C:13]([CH3:19])[N:12]=[C:7]12.[S:20]([O:25]C)([O:23][CH3:24])(=[O:22])=[O:21]>O1CCCC1>[CH3:24][O:23][S:20]([O-:25])(=[O:22])=[O:21].[Cl:1][C:2]1[CH:11]=[CH:10][CH:9]=[C:8]2[C:3]=1[CH:4]=[CH:5][N:6]1[C:14]([CH2:15][N+:16]([CH3:24])([CH3:18])[CH3:17])=[C:13]([CH3:19])[N:12]=[C:7]12参加物
4
実験手順
A solution of 7-chloro-3-dimethylaminomethyl-2-methylimidazo[2,1-a]isoquinoline (3.4 g) in tetrahydrofuran (30 ml) was added dropwise to a solution of dimethyl sulfate (3.5 ml) in tetrahydrofuran (20 ml) with ice-cooling and stirring. After being stirred for 2 hours under the same conditions, the resulting precipitates were collected by filtration and washed with tetrahydrofuran and then ethanol to give 7-chloro-2-methyl-3-trimethylammoniomethylimidazo[2,1-a]isoquinoline methylsulfate (4.4 g).
後処理
- temperaturecooling
- stirringAfter being stirred for 2 hours under the same conditions
- customthe resulting precipitates
- filtrationwere collected by filtration
- washwashed with tetrahydrofuran
出典と根拠
- ORDレコード
- ord-f685f738a5e64f17819daf143d35faf4
- 出典データセット
- uspto-grants-1988_04
- 特許番号
- US04738967
反応ノート
読み込み中…