Triethylamine → N-(3-Cyano-4-isobutylphenyl)-1-(4-fluorophenyl)-3-methylpyrazole-4-carboxamide

HRID 1744572

反応式

HRID 1744572 の反応式
[F:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]2[CH:12]=[C:11]([C:13]([OH:15])=O)[C:10]([CH3:16])=[N:9]2)=[CH:4][CH:3]=1.[NH2:17][C:18]1[CH:19]=[CH:20][C:21]([CH2:26][CH:27]([CH3:29])[CH3:28])=[C:22]([CH:25]=1)[C:23]#[N:24].C(N(CC)CC)C.P(C#N)(OCC)(OCC)=O>O.CN(C)C=O>[C:23]([C:22]1[CH:25]=[C:18]([NH:17][C:13]([C:11]2[C:10]([CH3:16])=[N:9][N:8]([C:5]3[CH:4]=[CH:3][C:2]([F:1])=[CH:7][CH:6]=3)[CH:12]=2)=[O:15])[CH:19]=[CH:20][C:21]=1[CH2:26][CH:27]([CH3:28])[CH3:29])#[N:24]

参加物

7

反応物 4

HCID 8471TriethylamineHCID 76257Diethyl cyanophosphonateHCID 222279325-Amino-2-(2-methylpropyl)benzonitrileHCID 222280571-(4-fluorophenyl)-3-methyl-1H-pyrazole-4-carboxylic acid

生成物 1

HCID 22228075N-(3-Cyano-4-isobutylphenyl)-1-(4-fluorophenyl)-3-methylpyrazole-4-carboxamide収率 35.1%

試薬・触媒・溶媒 2

HCID 962Water溶媒HCID 6228Dimethylformamide溶媒

実験手順

1-(4-Fluorophenyl)-3-methylpyrazole-4-carboxylic acid (1.5 g), 5-amino-2-isobutylbenzonitrile (1.2 g), triethylamine (2.0 g) and diethyl cyanophosphate (1.2 g) were added to dimethylformamide (15 ml) and the mixture was stirred at room temperature for 1 h. The reaction mixture was added into water and extracted with ethyl acetate. The organic layer was washed with saturated brine and dried over anhydrous magnesium sulfate, after which the solvent was evaporated under reduced pressure. A mixed solvent of ethyl acetate-n-hexane was added to the residue to allow crystallization. The crystals were recrystallized from hydrous dimethylformamide to give the title compound (0.9 g), melting point: 178–179° C.

後処理

  1. extractionextracted with ethyl acetate
  2. washThe organic layer was washed with saturated brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. customafter which the solvent was evaporated under reduced pressure
  5. additionA mixed solvent of ethyl acetate-n-hexane was added to the residue
  6. customcrystallization
  7. customThe crystals were recrystallized from hydrous dimethylformamide

出典と根拠

ORDレコード
ord-29466eef691b4b4a9665ab182fc32d67
出典データセット
uspto-grants-2006_03
特許番号
US07015218B1

関連ノート

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