反応式
C[O-].[Na+:3].[Na].[Cl:5][C:6]1[C:11]([Cl:12])=[CH:10][C:9]([S:13]([NH2:16])(=[O:15])=[O:14])=[CH:8][C:7]=1[S:17]([NH2:20])(=[O:19])=[O:18]>CO>[Na+:3].[Cl:5][C:6]1[C:11]([Cl:12])=[CH:10][C:9]([S:13]([NH-:16])(=[O:14])=[O:15])=[CH:8][C:7]=1[S:17]([NH2:20])(=[O:19])=[O:18]参加物
5
反応条件
- 温度
- 25 °C
実験手順
To a solution of sodium methoxide (5.0 millimoles) in methanol (100 ml), freshly generated by the careful portionwise additions of sodium (1.15 g, 5.0 millimole) to methanol (100 ml.), is added 4,5-dichloro-m-benzenedisulfonamide (15.16 g, 5.0 millimole) with stirring at 25° C. The resulting mixture is stirred at 25° C. for 30 minutes to provide a colorless solution which is filtered. Evaporation of the clear, colorless filtrate at 40° C. in vacuo provides a solid residue which is dried in vacuo at 80° C. for 16 hours to provide analytically pure 4,5-dichloro-m-benzenedisulfonamide mono sodium salt as a colorless solid (14.0 g., 85%), m.p./252°-244° C.
後処理
- stirringThe resulting mixture is stirred at 25° C. for 30 minutes
- customto provide a colorless solution which
- filtrationis filtered
- customEvaporation of the clear, colorless filtrate at 40° C. in vacuo
- customprovides a solid residue which
- customis dried in vacuo at 80° C. for 16 hours
出典と根拠
- ORDレコード
- ord-2925a56d4c404959a9cb6dd60a74d85b
- 出典データセット
- uspto-grants-1984_03
- 特許番号
- US04438123
関連ノート
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