Potassium Iodide → HCID 13078377、化合物
反応式
[BrH:1].[CH3:2][O:3][C:4]1[C:5]([O:19][CH3:20])=[CH:6][C:7]2[O:11][N:10]=[C:9]([CH:12]3[CH2:17][CH2:16][NH:15][CH2:14][CH2:13]3)[C:8]=2[CH:18]=1.C(=O)([O-])[O-].[K+].[K+].[I-].[K+].Cl[CH2:30][CH2:31][CH2:32][CH:33]([C:41]1[CH:46]=[CH:45][C:44]([F:47])=[CH:43][CH:42]=1)[C:34]1[CH:39]=[CH:38][C:37]([F:40])=[CH:36][CH:35]=1>O.CN(C)C=O>[BrH:1].[CH3:2][O:3][C:4]1[C:5]([O:19][CH3:20])=[CH:6][C:7]2[O:11][N:10]=[C:9]([CH:12]3[CH2:13][CH2:14][N:15]([CH2:30][CH2:31][CH2:32][CH:33]([C:34]4[CH:35]=[CH:36][C:37]([F:40])=[CH:38][CH:39]=4)[C:41]4[CH:46]=[CH:45][C:44]([F:47])=[CH:43][CH:42]=4)[CH2:16][CH2:17]3)[C:8]=2[CH:18]=1参加物
実験手順
A stirred mixture of 2.60 g of 5,6-dimethoxy-3-(4-piperidyl)-1,2-benzisoxazole hydrobromide, 3.30 g of potassium carbonate, 0.25 g of potassium iodide, 2.20 g of 4-chloro-1,1-bis(4-fluorophenyl)butane and 75 ml of dimethylformamide was heated to 90° for 8 hrs and overnight at ambient temperature. The reaction mixture was poured into 500 ml of water and was extracted with ether, dried over anhydrous magnesium sulfate and the solvent was removed in vacuo to yield an oil. The oil was purified by filtering through a silica gel column (25:1), using dichloromethane as eluent. The eluent was evaporated and the residue was dissolved in ether, and a saturated hydrogen bromide-ether solution was added dropwise to precipitate the salt. The salt was collected and washed with 3.0 g of ether. Recrystallization from toluene-water yielded 2.2 g (48.3%) of the product, mp 195°-197°.
後処理
- extractionwas extracted with ether
- dry with materialdried over anhydrous magnesium sulfate
- customthe solvent was removed in vacuo
- customto yield an oil
- customThe oil was purified
- filtrationby filtering through a silica gel column (25:1)
- customThe eluent was evaporated
- dissolutionthe residue was dissolved in ether
- additiona saturated hydrogen bromide-ether solution was added dropwise
- customto precipitate the salt
- customThe salt was collected
- washwashed with 3.0 g of ether
- customRecrystallization from toluene-water
出典と根拠
- ORDレコード
- ord-386c1ddfba674bb190420b5d01b54e2d
- 出典データセット
- uspto-grants-1982_10
- 特許番号
- US04352811
反応ノート
読み込み中…