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Imidazole → 5-(4-{1-[4-(t-butyl-dimethyl-silanyloxy)-3-methyl-phenyl]-1-ethyl-propyl}-2-methyl-phenyl)-4-methyl-thiophene-2-carboxylic Acid Methyl Ester

HRID 546839
ノート
印刷プレビュー

反応式

HRID 546839 の反応式
[Si:1](Cl)([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2].N1C=CN=C1.[CH3:14][O:15][C:16]([C:18]1[S:19][C:20]([C:24]2[CH:29]=[CH:28][C:27]([C:30]([CH2:41][CH3:42])([C:33]3[CH:38]=[CH:37][C:36]([OH:39])=[C:35]([CH3:40])[CH:34]=3)[CH2:31][CH3:32])=[CH:26][C:25]=2[CH3:43])=[C:21]([CH3:23])[CH:22]=1)=[O:17].C(OCC)C>CN(C)C=O>[CH3:14][O:15][C:16]([C:18]1[S:19][C:20]([C:24]2[CH:29]=[CH:28][C:27]([C:30]([C:33]3[CH:38]=[CH:37][C:36]([O:39][Si:1]([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2])=[C:35]([CH3:40])[CH:34]=3)([CH2:31][CH3:32])[CH2:41][CH3:42])=[CH:26][C:25]=2[CH3:43])=[C:21]([CH3:23])[CH:22]=1)=[O:17]
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 795ImidazoleHCID 3283Diethyl EtherHCID 28928tert-Butyldimethylsilyl chlorideHCID 574434855-{4-[1-ethyl-1-(4-hydroxy-3-methyl-phenyl)-propyl]-2-methyl-phenyl}-4-methyl-thiophene-2-carboxylic Acid Methyl Ester

生成物 1

HCID 577090565-(4-{1-[4-(t-butyl-dimethyl-silanyloxy)-3-methyl-phenyl]-1-ethyl-propyl}-2-methyl-phenyl)-4-methyl-thiophene-2-carboxylic Acid Methyl Ester
収率 88,285%

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

実験手順

t-Butyldimethylsilyl chloride (36 mg, 0.238 mmol) and imidazole (40.5 mg, 0.595 mmol) were added to a solution of 5-{4-[1-ethyl-1-(4-hydroxy-3-methyl-phenyl)-propyl]-2-methyl-phenyl}-4-methyl-thiophene-2-carboxylic acid methyl ester (Example 20-(1); 50.3 mg, 0.119 mmol) in N,N-dimethylformamide (0.2 mL) at room temperature, and the mixture was stirred at the same temperature for 0.2 hour. Diethyl ether was added to the reaction solution. The organic layer was washed with distilled water and brine and dried over anhydrous magnesium sulfate, and then the solvent was distilled off under reduced pressure. The residue was purified by silica gel chromatography (n-hexane/ethyl acetate=95/5 to ethyl acetate only) to give the title compound (56.4 g, 88.3%).

後処理

  1. washThe organic layer was washed with distilled water and brine
  2. dry with materialdried over anhydrous magnesium sulfate
  3. distillationthe solvent was distilled off under reduced pressure
  4. customThe residue was purified by silica gel chromatography (n-hexane/ethyl acetate=95/5 to ethyl acetate only)

出典と根拠

ORDレコード
ord-93d05f1aad284ec09a338ebb73d32f55
出典データセット
uspto-grants-2011_05
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07935688B2

反応ノート

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