Dimethylformamide → 2-Fluoro-4-(pyridin-2-ylmethoxy)benzaldehyde

HRID 78074

反応式

HRID 78074 の反応式
CN(C)C=O.[F:6][C:7]1[CH:14]=[C:13]([OH:15])[CH:12]=[CH:11][C:8]=1[CH:9]=[O:10].[H-].[Na+].[N:18]1[CH:23]=[CH:22][CH:21]=[CH:20][C:19]=1[CH2:24]Cl>O>[F:6][C:7]1[CH:14]=[C:13]([O:15][CH2:24][C:19]2[CH:20]=[CH:21][CH:22]=[CH:23][N:18]=2)[CH:12]=[CH:11][C:8]=1[CH:9]=[O:10]

参加物

6

反応物 4

HCID 6228DimethylformamideHCID 23393Picolyl chlorideHCID 24758Sodium hydrideHCID 5872462-Fluoro-4-hydroxybenzaldehyde

生成物 1

HCID 592553212-Fluoro-4-(pyridin-2-ylmethoxy)benzaldehyde収率 40.6%

試薬・触媒・溶媒 1

HCID 962Water溶媒

実験手順

To an N,N-dimethylformamide (10.0 mL) solution of 2-fluoro-4-hydroxy-benzaldehyde (1.60 g, 11.4 mmol) was added sodium hydride (547 mg, 13.7 mmol, 60% in oil) under nitrogen atmosphere at 0° C., which was stirred for 30 minutes at room temperature. 2-Picolyl chloride (2.80 g, 17.1 mmol) was then added at room temperature and stirred for 1 hour at 70° C. Water was added to the reaction solution at room temperature, which was then extracted with ethyl acetate. The organic layer was washed with saturated aqueous sodium chloride, and the solvent was evaporated under a reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate: heptane=1:3) to obtain the title compound (1.07 g, 40.6%).

後処理

  1. stirringstirred for 1 hour at 70° C
  2. extractionwhich was then extracted with ethyl acetate
  3. washThe organic layer was washed with saturated aqueous sodium chloride
  4. customthe solvent was evaporated under a reduced pressure
  5. customThe residue was purified by silica gel column chromatography (ethyl acetate: heptane=1:3)

出典と根拠

ORDレコード
ord-1c9e6d52f78342abbcd23dab4ddeea10
出典データセット
uspto-grants-2014_09
特許番号
US08841327B2

関連ノート

読み込み中…