Hydrogen Bromide → HCID 13561737、化合物
反応式
[CH3:1][C:2]([CH3:9])([CH2:6][CH:7]=[CH2:8])[C:3](=[O:5])[CH3:4].[BrH:10]>C(Cl)(Cl)Cl.[Fe]>[Br:10][CH:7]([CH3:8])[CH2:6][C:2]([CH3:9])([CH3:1])[C:3](=[O:5])[CH3:4]参加物
5
実験手順
18.9 g (0.15 mole) of 3,3-dimethyl-5-hexen-2-one and 1.6 g (0.0054 mole) of iron-III bromide are dissolved in 150 ml of chloroform. 0.16 mole of hydrogen bromide gas are passed in at 0° C. in the course of 90 minutes. The mixture is subsequently stirred at room temperature for 2 hours and the organic phase is separated off, washed with water, dried over sodium sulphate and concentrated in vacuo. 27 g (87% of theory) of 5-bromo-3,3-dimethyl-2-hexanone of refractive index nD20 =1.4639 are obtained.
後処理
- customare passed in at 0° C. in the course of 90 minutes
- customthe organic phase is separated off
- washwashed with water
- dry with materialdried over sodium sulphate
- concentrationconcentrated in vacuo
出典と根拠
- ORDレコード
- ord-24bc4bc54f8e4d8ab29ec80028af93e7
- 出典データセット
- uspto-grants-1988_05
- 特許番号
- US04748249
反応ノート
読み込み中…