反応式
[C:1]1([C:7]2[N:8]=[C:9]3[N:13]([CH:14]=2)[C:12]2[CH2:15][CH2:16][CH2:17][CH2:18][C:11]=2[S:10]3)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.P(Cl)(Cl)(Cl)=O.[C:24](=O)([O-])[O-:25].[Na+].[Na+]>CN(C)C=O>[C:1]1([C:7]2[N:8]=[C:9]3[N:13]([C:14]=2[CH:24]=[O:25])[C:12]2[CH2:15][CH2:16][CH2:17][CH2:18][C:11]=2[S:10]3)[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=1参加物
5
反応条件
- 温度
- 60 °C
実験手順
3.35 g of 5,6,7,8-tetrahydro-2-phenylimidazo[2,1-b]benzothiazole was suspended in 20 ml of dimethylformamide. To the resultant mixture, 3 ml of phosphorus oxychloride was added dropwise at 0° C. over 10 minutes. The solution was gradually returned to room temperature, then heated and stirred at 60° C. for 3 hours, poured onto an aqueous sodium carbonate solution, then extracted with chloroform. The solvent was distilled off, the residue was then recrystallized from ethanol to obtain the desired substance in an amount of 2.31 g (yield of 82.0%) (melting point:150-150.5° C.).
後処理
- customwas gradually returned to room temperature
- temperatureheated
- extractionextracted with chloroform
- distillationThe solvent was distilled off
- customthe residue was then recrystallized from ethanol
- customto obtain the desired substance in an amount of 2.31 g (yield of 82.0%) (melting point:150-150.5° C.)
出典と根拠
- ORDレコード
- ord-d1941fde172f477b96484c5054a58e59
- 出典データセット
- uspto-grants-1999_07
- 特許番号
- US05919799
関連ノート
読み込み中…