Water → HCID 178493767、化合物
反応式
[SH:1][C:2]1[NH:6][C:5]2[CH:7]=[CH:8][C:9]([O:11][CH2:12][C:13]([F:16])([F:15])[F:14])=[CH:10][C:4]=2[N:3]=1.[Cl-].Cl[CH2:19][C:20]1[CH:25]=[C:24]([O:26][CH3:27])[C:23]([O:28][CH3:29])=[CH:22][NH+:21]=1.O>C(O)C.[OH-].[Na+]>[CH3:27][O:26][C:24]1[C:23]([O:28][CH3:29])=[CH:22][N:21]=[C:20]([CH2:19][S:1][C:2]2[NH:6][C:5]3[CH:7]=[CH:8][C:9]([O:11][CH2:12][C:13]([F:16])([F:14])[F:15])=[CH:10][C:4]=3[N:3]=2)[CH:25]=1参加物
6
実験手順
1.0 g of 2-mercapto-5-(2,2,2-trifluoroethoxy)-1H-benzimidazole is dissolved in 15 ml of ethanol and 8.5 ml of 1N sodium hydroxide solution, 0.90 g of 2-chloromethyl-4,5-dimethoxypyridinium chloride are added and the mixture is stirred for 20 hours. After addition of 30 ml of water, the mixture is extracted three times with 30 ml of methylene chloride each time, the methylene chloride phase is washed once with 5 ml of 0.1N sodium hydroxide solution, the combined organic phases are dried over magnesium sulfate and, after the drying agent has been filtered off, the filtrate is completely concentrated. 1.51 g (94% of theory) of the title compound are obtained as an amorphous solid residue of m.p. 55°-57° C.
後処理
- extractionthe mixture is extracted three times with 30 ml of methylene chloride each time
- washthe methylene chloride phase is washed once with 5 ml of 0.1N sodium hydroxide solution
- dry with materialthe combined organic phases are dried over magnesium sulfate
- filtrationafter the drying agent has been filtered off
- concentrationthe filtrate is completely concentrated
出典と根拠
- ORDレコード
- ord-6b38d607ed584f6d874e70a98ec97057
- 出典データセット
- uspto-grants-1988_07
- 特許番号
- US04758579
反応ノート
読み込み中…