Dimethylformamide → (1-benzyl-5-phenyl-1H-pyrazol-4-yl)acetonitrile

HRID 349928ノート

反応式

HRID 349928 の反応式
[CH2:1]([N:8]1[C:12]([C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=2)=[C:11]([CH2:19]Cl)[CH:10]=[N:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[C-]#N.[K+].[CH3:24][N:25](C)C=O>O>[CH2:1]([N:8]1[C:12]([C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=2)=[C:11]([CH2:19][C:24]#[N:25])[CH:10]=[N:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

参加物

5

反応物 3

HCID 6228DimethylformamideHCID 9032Potassium CyanideHCID 230250441-benzyl-4-chloromethyl-5-phenyl-1H-pyrazole

生成物 1

HCID 23024861(1-benzyl-5-phenyl-1H-pyrazol-4-yl)acetonitrile収率 44%

試薬・触媒・溶媒 1

HCID 962Water溶媒

反応条件

温度
90 °C

実験手順

A mixture of 1-benzyl-4-chloromethyl-5-phenyl-1H-pyrazole (8.31 g), potassium cyanide (2.87 g), and N,N-dimethylformamide (100 ml) was stirred for 15 hours at 90° C., and poured into water, which was extracted with ethyl acetate. The ethyl acetate layer was washed with water and then with saturated aqueous sodium chloride solution, dried (MgSO4), and then concentrated. The residue was subjected to silica gel column chromatography, and (1-benzyl-5-phenyl-1H-pyrazol-4-yl)acetonitrile (3.50 g, yield: 44%) was obtained as a colorless oily substance from the fraction eluted with ethyl acetate-hexane (1:2, volume ratio).

後処理

  1. extractionwas extracted with ethyl acetate
  2. washThe ethyl acetate layer was washed with water
  3. dry with materialwith saturated aqueous sodium chloride solution, dried (MgSO4)
  4. concentrationconcentrated

出典と根拠

ORDレコード
ord-e94eaae61c404a3094fc68d0602349e7
出典データセット
uspto-grants-2007_02
特許番号
US07179823B1

反応ノート

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