Borane;tetrahydrofuran → HCID 66643901、化合物
反応式
[Br:1][C:2]1[C:3]([CH3:12])=[C:4]([CH:8]=[C:9]([F:11])[CH:10]=1)[C:5](O)=[O:6].B.C1COCC1>C1COCC1>[Br:1][C:2]1[C:3]([CH3:12])=[C:4]([CH2:5][OH:6])[CH:8]=[C:9]([F:11])[CH:10]=1参加物
4
実験手順
To a cooled (0° C.) solution of 3-bromo-5-fluoro-2-methyl-benzoic acid (3 g, 12.9 mmol) in dry THF (20 mL) was added borane THF complex (25.8 mL, 1 M in THF, 25.8 mmol) slowly. The resulting mixture was stirred at room temperature overnight, then quenched with MeOH and concentrated. The residue was purified by column chromatography to give (3-bromo-5-fluoro-2-methyl-phenyl)-methanol. 1H-NMR (400 MHz, CDCl3) δ ppm 7.25 (dd, J=8.6 Hz, J=3.1 Hz, 1H), 7.15 (dd, J=8.6 Hz, J=2.3 Hz, 1H), 4.71 (s, 2H), 2.33 (s, 3H).
後処理
- customquenched with MeOH
- concentrationconcentrated
- customThe residue was purified by column chromatography
出典と根拠
- ORDレコード
- ord-9a9308f5a77744dda2c15b4497aab3c5
- 出典データセット
- uspto-grants-2014_03
- 特許番号
- US08673920B2
反応ノート
読み込み中…