反応式
[Cr](O[Cr]([O-])(=O)=O)([O-])(=O)=[O:2].[K+].[K+].[CH3:12][N:13]1[C:18]([C:19]([F:22])([F:21])[F:20])=[CH:17][C:16](=[O:23])[N:15]([C:24]2[CH:25]=[CH:26][C:27]3[S:31][N:30]=[C:29]([CH:32]=[O:33])[C:28]=3[CH:34]=2)[C:14]1=[O:35]>S(=O)(=O)(O)O.C(O)(=O)C.O>[CH3:12][N:13]1[C:18]([C:19]([F:20])([F:21])[F:22])=[CH:17][C:16](=[O:23])[N:15]([C:24]2[CH:25]=[CH:26][C:27]3[S:31][N:30]=[C:29]([C:32]([OH:2])=[O:33])[C:28]=3[CH:34]=2)[C:14]1=[O:35]参加物
6
反応物 2
生成物 1
試薬・触媒・溶媒 3
実験手順
A solution of potassium dichromate (10.0 g) in 1.5 M sulfuric acid (200 mL) is cooled to 0° C., treated dropwise with a solution of a 2:3 mixture of 3-[3-(hydromethyl)-1,2-benzisothiazol-5-yl]-1-methyl-6-(trifluoromethyl)-2,4(1H,3H)-pyrimidinedione and 5-[3,6-dihydro-3-methyl-2,6-dioxo-4-(trifluoromethyl)-1(2H)-pyrimidinyl]-1,2-benzisothiazole-3-carboxaldehyde (12.0 g) in acetic acid, stirred at room temperature for 2 hours, and diluted with water. The resultant aqueous mixture is extracted with methylene chloride. The organic extracts are combined, washed sequentially with water and brine, dried over anhydrous sodium sulfate, and concentrated in vacuo to give the title product as a white solid (8.50 g, mp 149-152° C.).
後処理
- extractionThe resultant aqueous mixture is extracted with methylene chloride
- washwashed sequentially with water and brine
- dry with materialdried over anhydrous sodium sulfate
- concentrationconcentrated in vacuo
出典と根拠
- ORDレコード
- ord-50cae551cddb4cf8ac54d8ea1354bcf1
- 出典データセット
- uspto-grants-2000_12
- 特許番号
- US06156700
関連ノート
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