Sodium Carbonate → 3-Fluoro-4-(2-methylpyridin-4-yl)benzonitrile

HRID 71202

反応式

HRID 71202 の反応式
[F:1][C:2]1[CH:3]=[C:4]([CH:7]=[CH:8][C:9]=1B1OC(C)(C)C(C)(C)O1)[C:5]#[N:6].Br[C:20]1[CH:25]=[CH:24][N:23]=[C:22]([CH3:26])[CH:21]=1.C(=O)([O-])[O-].[Na+].[Na+]>COCCOC.O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[F:1][C:2]1[CH:3]=[C:4]([CH:7]=[CH:8][C:9]=1[C:20]1[CH:25]=[CH:24][N:23]=[C:22]([CH3:26])[CH:21]=1)[C:5]#[N:6]

参加物

7

反応物 3

HCID 10340Sodium CarbonateHCID 27628354-Bromo-2-methylpyridineHCID 447552103-Fluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzonitrile

生成物 1

HCID 666076963-Fluoro-4-(2-methylpyridin-4-yl)benzonitrile

試薬・触媒・溶媒 3

HCID 178418397HCID 178418397、化合物触媒HCID 962Water溶媒HCID 80711,2-Dimethoxyethane溶媒

反応条件

温度
80 °C

実験手順

A mixture of 3-fluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzonitrile (14.0 g), 4-bromo-2-methylpyridine (5.84 mL), tetrakis(triphenylphosphine)palladium(0) (5.24 g) and 2N aqueous sodium carbonate solution (91 mL) in 1,2-dimethoxyethane (20 mL) was stirred at 80° C. for 30 min under a nitrogen atmosphere. The reaction mixture was allowed to cool to room temperature, and diluted with water, and the mixture was extracted with ethyl acetate. The organic layer was separated, 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 (6.41 g).

後処理

  1. temperatureto cool to room temperature
  2. extractionthe mixture was extracted with ethyl acetate
  3. customThe organic layer was separated
  4. dry with materialdried over anhydrous magnesium sulfate
  5. customthe solvent was evaporated under reduced pressure
  6. customThe residue was purified by silica gel column chromatography (ethyl acetate/hexane)

出典と根拠

ORDレコード
ord-d738681f9e2b459293a710f609b9640e
出典データセット
uspto-grants-2014_09
特許番号
US08822699B2

関連ノート

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