反応式
CC(C)=O.S([O-])([O-])(=O)=O.[Mg+2].P(O)([O-])([O-])=O.[Na+].[Na+].[Mn]([O-])(=O)(=O)=O.[Na+].[OH:24][CH:25]1[C:31]2[CH:32]=[CH:33][CH:34]=[CH:35][C:30]=2[CH2:29][O:28][C:27]2[CH:36]=[CH:37][C:38]([CH2:40][CH2:41][O:42][C:43]([C:56]3[CH:61]=[CH:60][CH:59]=[CH:58][CH:57]=3)([C:50]3[CH:55]=[CH:54][CH:53]=[CH:52][CH:51]=3)[C:44]3[CH:49]=[CH:48][CH:47]=[CH:46][CH:45]=3)=[CH:39][C:26]1=2>CO.O>[O:24]=[C:25]1[C:31]2[CH:32]=[CH:33][CH:34]=[CH:35][C:30]=2[CH2:29][O:28][C:27]2[CH:36]=[CH:37][C:38]([CH2:40][CH2:41][O:42][C:43]([C:56]3[CH:57]=[CH:58][CH:59]=[CH:60][CH:61]=3)([C:44]3[CH:45]=[CH:46][CH:47]=[CH:48][CH:49]=3)[C:50]3[CH:55]=[CH:54][CH:53]=[CH:52][CH:51]=3)=[CH:39][C:26]1=2参加物
実験手順
In this process, 10 g of 11-hydroxy-2-(2-triphenylmethyloxyethyl)-6,11-dihydrodibenz[b,e]oxepin is dissolved in a solution comprising 800 ml of acetone, 1000 ml of water, 20 ml of saturated aqueous magnesium sulfate solution and 0.2 g of disodium phosphate. To the solution is dropwise added 2.6 g of aqueous sodium permanganate solution and the mixture is stirred at room temperature for 4.5 hours. Then, 100 ml of methanol is added thereto and the mixture is heated at reflux for 3 hours. After allowing the mixture to stand for cooling, the mixture is filtered and the filtrate is extracted with 1000 ml of ethyl acetate, washed with saturated aqueous sodium chloride solution and dried over anhydrous sodium sulfate. The solvent is distilled away under reduced pressure and the resultant crude product is recrystallized from isopropanol to obtain 8.0 g of the desired product having melting point of 132-134° C. as a white crystal.
後処理
- temperaturethe mixture is heated
- temperatureat reflux for 3 hours
- temperaturefor cooling
- filtrationthe mixture is filtered
- extractionthe filtrate is extracted with 1000 ml of ethyl acetate
- washwashed with saturated aqueous sodium chloride solution
- dry with materialdried over anhydrous sodium sulfate
- distillationThe solvent is distilled away under reduced pressure
- customthe resultant crude product is recrystallized from isopropanol
出典と根拠
- ORDレコード
- ord-9a9557da7f33423e9959bafa83096fa5
- 出典データセット
- uspto-grants-1992_05
- 特許番号
- US05116863
関連ノート
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