Sodium Carbonate → 4-[5-chloro-2-(1-methyl-1-{4-methyl-5-[2-(trifluoromethyl)phenyl]-4H-1,2,4-triazol-3-yl}ethoxy)phenyl]pyridine dihydrochloride

HRID 389142ノート

反応式

HRID 389142 の反応式
[N:1]1[CH:6]=[CH:5][C:4](B(O)O)=[CH:3][CH:2]=1.C(=O)([O-])[O-].[Na+].[Na+].Br[C:17]1[CH:42]=[C:41]([Cl:43])[CH:40]=[CH:39][C:18]=1[O:19][C:20]([C:23]1[N:27]([CH3:28])[C:26]([C:29]2[CH:34]=[CH:33][CH:32]=[CH:31][C:30]=2[C:35]([F:38])([F:37])[F:36])=[N:25][N:24]=1)([CH3:22])[CH3:21]>C1(C)C(CCO)=CC=CC=1.O>[ClH:43].[ClH:43].[Cl:43][C:41]1[CH:42]=[CH:17][C:18]([O:19][C:20]([CH3:22])([C:23]2[N:27]([CH3:28])[C:26]([C:29]3[CH:34]=[CH:33][CH:32]=[CH:31][C:30]=3[C:35]([F:36])([F:37])[F:38])=[N:25][N:24]=2)[CH3:21])=[C:39]([C:4]2[CH:5]=[CH:6][N:1]=[CH:2][CH:3]=2)[CH:40]=1

参加物

5

反応物 3

HCID 10340Sodium CarbonateHCID 2734379(Pyridin-4-yl)boronic acidHCID 582438453-[1-(2-bromo-4-chlorophenoxy)-1-methylethyl]-4-methyl-5-[2-(trifluoromethyl)phenyl]-4H-1,2,4-triazole

生成物 1

HCID 866530204-[5-chloro-2-(1-methyl-1-{4-methyl-5-[2-(trifluoromethyl)phenyl]-4H-1,2,4-triazol-3-yl}ethoxy)phenyl]pyridine dihydrochloride収率 49.6%

試薬・触媒・溶媒 1

HCID 66602552Toluene-ethanol water溶媒

反応条件

温度
110 °C

実験手順

Pyridin-4-ylboronic acid (26 mg), tetrakis triphenylphosphine palladium (10 mg) and sodium carbonate (156 mg) were added to a mixed solution of 3-[1-(2-bromo-4-chlorophenoxy)-1-methylethyl]-4-methyl-5-[2-(trifluoromethyl)phenyl]-4H-1,2,4-triazole (100 mg) in toluene-ethanol-water (2 ml, 3:2:1), followed by stirring at 110° C. for 2 days. The reaction solution was concentrated under reduced pressure and diluted with chloroform. The organic layer was washed with water and saturated brine in this order and dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The residue was purified by thin layer chromatography (ethyl acetate:methanol=98:2). The resulting solid was dissolved in ethyl acetate and 4M hydrogen chloride-ethyl acetate was added thereto, followed by stirring at room temperature for 2 hours. The precipitated crystal was collected by filtration and washed with ethyl acetate to obtain 4-[5-chloro-2-(1-methyl-1-{4-methyl-5-[2-(trifluoromethyl)phenyl]-4H-1,2,4-triazol-3-yl}ethoxy)phenyl]pyridine dihydrochloride (19 mg) as a white crystal.

後処理

  1. concentrationThe reaction solution was concentrated under reduced pressure
  2. additiondiluted with chloroform
  3. washThe organic layer was washed with water and saturated brine in this order
  4. dry with materialdried over anhydrous magnesium sulfate
  5. customthe solvent was evaporated under reduced pressure
  6. customThe residue was purified by thin layer chromatography (ethyl acetate:methanol=98:2)
  7. dissolutionThe resulting solid was dissolved in ethyl acetate
  8. addition4M hydrogen chloride-ethyl acetate was added
  9. stirringby stirring at room temperature for 2 hours
  10. filtrationThe precipitated crystal was collected by filtration
  11. washwashed with ethyl acetate

出典と根拠

ORDレコード
ord-1ba5f80a9bd247d6b57576d9a1e09fd5
出典データセット
uspto-grants-2013_02
特許番号
US08377923B2

反応ノート

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