Chlorosulfonic acid → 2-(Methoxycarbonylamino) 6-(p-chlorosulfonylphenylthio) imidazo [1,2-a] pyridine
反応式
[CH3:1][O:2][C:3]([NH:5][C:6]1[N:7]=[C:8]2[CH:13]=[CH:12][C:11]([S:14][C:15]3[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=3)=[CH:10][N:9]2[CH:21]=1)=[O:4].[Cl:22][S:23](O)(=[O:25])=[O:24]>>[CH3:1][O:2][C:3]([NH:5][C:6]1[N:7]=[C:8]2[CH:13]=[CH:12][C:11]([S:14][C:15]3[CH:16]=[CH:17][C:18]([S:23]([Cl:22])(=[O:25])=[O:24])=[CH:19][CH:20]=3)=[CH:10][N:9]2[CH:21]=1)=[O:4]参加物
3
実験手順
4.5 gms. (0.015 mole) of 2-methoxycarbonylamino 6-(phenylthio) imidazo [1,2-a] pyridine is added portionwise to 45 ml. of chlorosulfonic acid at 0° to -5° C. The reaction mixture is stirred at room temperature for 24 hours. The solution is poured onto ice and the solids are collected by filtration. After repeated washes with water, the crude chlorosulfonic acid derivative is dried at room temperature in vacuo.
後処理
- customat 0° to -5° C
- additionThe solution is poured onto ice
- filtrationthe solids are collected by filtration
- dry with materialthe crude chlorosulfonic acid derivative is dried at room temperature in vacuo
出典と根拠
- ORDレコード
- ord-6c8dbdfa11fb4c17956239422d7c5570
- 出典データセット
- uspto-grants-1978_06
- 特許番号
- US04096264
反応ノート
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