Trimethylsilylacetylene → 3-Bromo-5-(trifluoromethyl)-2-[(trimethylsilyl)ethynyl]aniline

HRID 931002

反応式

HRID 931002 の反応式
[Br:1][C:2]1[C:3](I)=[C:4]([CH:6]=[C:7]([C:9]([F:12])([F:11])[F:10])[CH:8]=1)[NH2:5].[C:14]([Si:16]([CH3:19])([CH3:18])[CH3:17])#[CH:15]>Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1.[Cu]I.C(N(CC)CC)C>[Br:1][C:2]1[C:3]([C:15]#[C:14][Si:16]([CH3:19])([CH3:18])[CH3:17])=[C:4]([CH:6]=[C:7]([C:9]([F:12])([F:11])[F:10])[CH:8]=1)[NH2:5]

参加物

6

反応条件

温度
80 °C

実験手順

A mixture of 3-bromo-2-iodo-5-(trifluoromethyl)aniline (5.21 g), ethynyl(trimethyl)silane (2.21 mL), triethylamine (100 mL), dichlorobis(triphenylphosphine)palladium(II) (1.00 g) and copper(I) iodide (0.271 g) was stirred overnight at 80° C. under nitrogen atmosphere. The solvent was evaporated under reduced pressure, to the residue was added saturated aqueous ammonium chloride solution, and the mixture was extracted with ethyl acetate. The extract was washed with water and saturated brine, and dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate/hexane) to give the title compound (2.70 g).

後処理

  1. customThe solvent was evaporated under reduced pressure, to the residue
  2. additionwas added saturated aqueous ammonium chloride solution
  3. extractionthe mixture was extracted with ethyl acetate
  4. washThe extract was washed with water and saturated brine
  5. dry with materialdried over anhydrous magnesium sulfate
  6. customthe solvent was evaporated under reduced pressure
  7. customThe residue was purified by silica gel column chromatography (ethyl acetate/hexane)

出典と根拠

ORDレコード
ord-c3d634ed7fb94bde88394e1c8c988508
出典データセット
uspto-grants-2016_03
特許番号
US09296746B2

関連ノート

読み込み中…