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Dimethylformamide → ethyl 3-[3-ethoxy-1-[4-(2-phenyl-4-oxazolylmethoxy)benzyl]-1H-pyrazol-4-yl]propionate

HRID 350188
ノート
印刷プレビュー

反応式

HRID 350188 の反応式
[CH2:1]([O:3][C:4]1[C:8]([CH2:9][CH2:10][C:11]([O:13][CH2:14][CH3:15])=[O:12])=[CH:7][NH:6][N:5]=1)[CH3:2].Cl[CH2:17][C:18]1[CH:36]=[CH:35][C:21]([O:22][CH2:23][C:24]2[N:25]=[C:26]([C:29]3[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=3)[O:27][CH:28]=2)=[CH:20][CH:19]=1.CN(C)C=O.[H-].[Na+]>O>[CH2:1]([O:3][C:4]1[C:8]([CH2:9][CH2:10][C:11]([O:13][CH2:14][CH3:15])=[O:12])=[CH:7][N:6]([CH2:17][C:18]2[CH:19]=[CH:20][C:21]([O:22][CH2:23][C:24]3[N:25]=[C:26]([C:29]4[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=4)[O:27][CH:28]=3)=[CH:35][CH:36]=2)[N:5]=1)[CH3:2]
参加物実験手順後処理出典と根拠反応ノート

参加物

6

反応物 4

HCID 6228DimethylformamideHCID 24758Sodium hydrideHCID 230219114-(4-Chloromethylphenoxymethyl)-2-phenyloxazoleHCID 178471163HCID 178471163、化合物

生成物 1

HCID 11712608ethyl 3-[3-ethoxy-1-[4-(2-phenyl-4-oxazolylmethoxy)benzyl]-1H-pyrazol-4-yl]propionate収率 86.5%

試薬・触媒・溶媒 1

HCID 962
Water
溶媒

実験手順

To a mixture of ethyl 3-[3-ethoxy-1H-pyrazol-4-yl]propionate (318 mg), 4-(4-chloromethylphenoxymethyl)-2-phenyloxazole (450 mg), and N,N-dimethylformamide (10 ml), sodium hydride (60%, oily, 60.0 mg) was added at 0° C., and then the mixture was stirred at room temperature for 30 minutes. The reaction mixture was poured into water, which was extracted with ethyl acetate. The ethyl acetate layer was washed with water, then, with saturated aqueous sodium chloride solution, and dried (MgSO4) and concentrated. The obtained colorless crystals were collected by filtration, and ethyl 3-[3-ethoxy-1-[4-(2-phenyl-4-oxazolylmethoxy)benzyl]-1H-pyrazol-4-yl]propionate (616 mg, yield: 86%) was obtained. This was recrystallized from ethyl acetate-hexane. Melting point: 80–81° C.

後処理

  1. additionwas added at 0° C.
  2. extractionwas extracted with ethyl acetate
  3. washThe ethyl acetate layer was washed with water
  4. dry with materialwith saturated aqueous sodium chloride solution, and dried (MgSO4)
  5. concentrationconcentrated
  6. filtrationThe obtained colorless crystals were collected by filtration

出典と根拠

ORDレコード
ord-6775aefbf1a44c6b94d72a918cfa710d
出典データセット
uspto-grants-2007_02
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07179823B1

反応ノート

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