Toluene → 2'-Fluoro-4'-(hydroxymethyl)biphenyl-2-carbonitrile

HRID 1412255ノート

反応式

HRID 1412255 の反応式
[F:1][C:2]1[CH:7]=[C:6]([CH:8]=[O:9])[CH:5]=[CH:4][C:3]=1B(O)O.[C:13]([C:15]1[CH:20]=[CH:19][CH:18]=[CH:17][C:16]=1B(O)O)#[N:14].C(=O)([O-])[O-].[Na+].[Na+].C1(C)C=CC=CC=1>[Br-].C([N+](CCCC)(CCCC)CCCC)CCC.C(OCC)(=O)C.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2]>[F:1][C:2]1[CH:7]=[C:6]([CH2:8][OH:9])[CH:5]=[CH:4][C:3]=1[C:16]1[C:15]([C:13]#[N:14])=[CH:20][CH:19]=[CH:18][CH:17]=1

参加物

8

反応物 4

HCID 1140TolueneHCID 10340Sodium CarbonateHCID 27346102-Cyanophenylboronic acidHCID 162180452-Fluoro-4-formylbenzeneboronic acid

生成物 1

HCID 670099902'-Fluoro-4'-(hydroxymethyl)biphenyl-2-carbonitrile収率 30%

試薬・触媒・溶媒 3

HCID 74236Tetrabutylammonium Bromide触媒HCID 178418228Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)触媒HCID 8857Ethyl Acetate溶媒

反応条件

温度
100 °C

実験手順

A mixture of (2-fluoro-4-formylphenyl)boronic acid (35.3 g), 2-cyano-phenylboronic acid (40.0 g), [1,1′-bis(diphenylphosphino)ferrocene]dichloropalladium (1.7 g), tetrabutylammonium bromide (0.68 g), 2M aqueous sodium carbonate solution (200 mL) and toluene (600 mL) was stirred at 100° C. for 72 hr under an argon atmosphere. The reaction mixture was diluted with ethyl acetate, washed with saturated brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure. The obtained residue was dissolved in tetrahydrofuran (150 mL) and methanol (150 mL), sodium borohydride (8.7 g) was added, and the mixture was stirred at room temperature for 1 hr. After evaporation of the solvent under reduced pressure, the residue was extracted with water and ethyl acetate. The obtained ethyl acetate layer was washed with saturated brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure and the residue was purified by silica gel column chromatography to give the title compound as a colorless solid (14.1 g, 30%).

後処理

  1. washwashed with saturated brine
  2. dry with materialdried over anhydrous magnesium sulfate
  3. customThe solvent was evaporated under reduced pressure
  4. dissolutionThe obtained residue was dissolved in tetrahydrofuran (150 mL)
  5. additionmethanol (150 mL), sodium borohydride (8.7 g) was added
  6. stirringthe mixture was stirred at room temperature for 1 hr
  7. customAfter evaporation of the solvent under reduced pressure
  8. extractionthe residue was extracted with water and ethyl acetate
  9. washThe obtained ethyl acetate layer was washed with saturated brine
  10. dry with materialdried over anhydrous magnesium sulfate
  11. customThe solvent was evaporated under reduced pressure
  12. customthe residue was purified by silica gel column chromatography

出典と根拠

ORDレコード
ord-8cbd521d8db74ed7a6a80781d3a3d4c9
出典データセット
uspto-grants-2014_12
特許番号
US08921379B2

反応ノート

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