Imidazole → HCID 68957642、化合物

HRID 2378069ノート

反応式

HRID 2378069 の反応式
N1C=CN=C1.[CH3:6][O:7][C:8]([C:10]1([C:13]2[O:17][N:16]=[C:15]([C:18]3[CH:23]=[CH:22][C:21]([OH:24])=[CH:20][CH:19]=3)[C:14]=2[C:25]2[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=2)[CH2:12][CH2:11]1)=[O:9].[Si:31](Cl)([C:34]([CH3:37])([CH3:36])[CH3:35])([CH3:33])[CH3:32]>C1COCC1.[Cl-].[Na+].O>[CH3:6][O:7][C:8]([C:10]1([C:13]2[O:17][N:16]=[C:15]([C:18]3[CH:23]=[CH:22][C:21]([O:24][Si:31]([C:34]([CH3:37])([CH3:36])[CH3:35])([CH3:33])[CH3:32])=[CH:20][CH:19]=3)[C:14]=2[C:25]2[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=2)[CH2:11][CH2:12]1)=[O:9]

参加物

6

反応物 3

HCID 795ImidazoleHCID 28928tert-Butyldimethylsilyl chlorideHCID 136395593HCID 136395593、化合物

生成物 1

HCID 68957642HCID 68957642、化合物収率 99.4%

試薬・触媒・溶媒 2

HCID 8028Tetrahydrofuran溶媒HCID 57417360Sodium chloride; water溶媒

実験手順

Imidazole (2.1 g) is added to a solution consisting of the 1-[3-(4-hydroxy-phenyl)-4-phenyl-isoxazol-5-yl]-cyclopropanecarboxylic acid methyl ester (9.6 g) and tert-butyldimethylsilyl chloride (4.7 g) in THF (100 mL). The reaction mixture is stirred at room temperature overnight. Brine solution is added and the reaction mixture is twice extracted with ethyl acetate. The combined extracts are dried and concentrated. Repeated concentration from hexane and then pentane gave 1-{3-[4-(tert-butyl-dimethyl-silanyloxy)-phenyl]-4-phenyl-isoxazol-5-yl}-cyclopropanecarboxylic acid methyl ester (12.8 g.)

後処理

  1. extractionthe reaction mixture is twice extracted with ethyl acetate
  2. customThe combined extracts are dried
  3. concentrationconcentrated
  4. concentrationconcentration from hexane

出典と根拠

ORDレコード
ord-c8685dd35471478789b8de2d53cd3581
出典データセット
uspto-grants-2008_12
特許番号
US07470715B2

反応ノート

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