Potassium Carbonate → 4-Bromo-2-ethyl-6-methyl-1-[3-(4-trifluoromethoxyphenoxy)propyloxy]benzene
反応式
[Br:1][C:2]1[CH:7]=[C:6]([CH2:8][CH3:9])[C:5]([OH:10])=[C:4]([CH2:11]C)[CH:3]=1.Br[CH2:14][CH2:15][CH2:16][O:17][C:18]1[CH:23]=[CH:22][C:21]([O:24][C:25]([F:28])([F:27])[F:26])=[CH:20][CH:19]=1.C(=O)([O-])[O-].[K+].[K+]>CN(C)C=O>[Br:1][C:2]1[CH:3]=[C:4]([CH3:11])[C:5]([O:10][CH2:14][CH2:15][CH2:16][O:17][C:18]2[CH:23]=[CH:22][C:21]([O:24][C:25]([F:26])([F:27])[F:28])=[CH:20][CH:19]=2)=[C:6]([CH2:8][CH3:9])[CH:7]=1参加物
5
実験手順
To a mixture of 10 g of 4-bromo-2,6-diethylphenol, 13.5 g of l-(3-bromopropyloxy)-4-trifluoromethoxybenzene and 100 ml of N,N-dimethylformamide was added 6.6 g of potassium carbonate, while stirring at room temperature. After stirring at room temperature for 12 hours, the reaction mixture was poured into ice water, and extracted twice with 200 ml of diethyl ether. The combined ether layer was washed with water, dried with anhydrous magnesium sulfate, and concentrated to obtain a crude product. The crude product was subjected to silica gel chromatography, which afforded 14.8 g of 4-bromo-2-ethyl-6-methyl-1-[3-(4-trifluoromethoxyphenoxy)propyloxy]benzene (76% yield).
後処理
- stirringAfter stirring at room temperature for 12 hours
- extractionextracted twice with 200 ml of diethyl ether
- washThe combined ether layer was washed with water
- dry with materialdried with anhydrous magnesium sulfate
- concentrationconcentrated
- customto obtain a crude product
出典と根拠
- ORDレコード
- ord-2a46c44ff20a4cd091ee1ad993747ac9
- 出典データセット
- uspto-grants-1999_02
- 特許番号
- US05872137
反応ノート
読み込み中…