Water → 4-(Bromomethyl)-2,2-dimethyloxane
反応式
[CH3:1][C:2]1([CH3:10])[CH2:7][CH:6]([CH2:8]O)[CH2:5][CH2:4][O:3]1.C(Br)(Br)(Br)[Br:12].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.O>ClCCl>[Br:12][CH2:8][CH:6]1[CH2:5][CH2:4][O:3][C:2]([CH3:10])([CH3:1])[CH2:7]1参加物
6
実験手順
To a solution of (2,2-dimethyltetrahydro-2H-pyran-4-yl)methanol (2.50 g) in dichloromethane (30 mL) were added carbon tetrabromide (6.80 g) and triphenylphosphine (5.40 g), and the mixture was stirred at room temperature for 20 hr. Water was added and the mixture was extracted with diethyl ether. The extract was dried over anhydrous sodium sulfate and the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (petroleum ether) to give the title compound (1.10 g) as a colorless oil.
後処理
- extractionthe mixture was extracted with diethyl ether
- dry with materialThe extract was dried over anhydrous sodium sulfate
- customthe solvent was evaporated under reduced pressure
- customThe residue was purified by silica gel column chromatography (petroleum ether)
出典と根拠
- ORDレコード
- ord-1a7c6eb60369425cb2328263bba618cd
- 出典データセット
- uspto-grants-2015_11
- 特許番号
- US09181186B2
反応ノート
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