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Methyl iodide → Methyl 1-[(2'-t-butoxycarbonylbiphenyl-4-yl)methyl]-2-butyl-4-(methoxymethyl)imidazole-5-carboxylate

HRID 265026
ノート
印刷プレビュー

反応式

HRID 265026 の反応式
[H-].[Na+].[C:3]([O:7][C:8]([C:10]1[CH:15]=[CH:14][CH:13]=[CH:12][C:11]=1[C:16]1[CH:21]=[CH:20][C:19]([CH2:22][N:23]2[C:27]([C:28]([O:30][CH3:31])=[O:29])=[C:26]([C:32]([O:34][CH3:35])=O)[N:25]=[C:24]2[CH2:36][CH2:37][CH2:38][CH3:39])=[CH:18][CH:17]=1)=[O:9])([CH3:6])([CH3:5])[CH3:4].IC.C(OCC)(=O)C>CN(C)C(=O)C.O>[C:3]([O:7][C:8]([C:10]1[CH:15]=[CH:14][CH:13]=[CH:12][C:11]=1[C:16]1[CH:21]=[CH:20][C:19]([CH2:22][N:23]2[C:27]([C:28]([O:30][CH3:31])=[O:29])=[C:26]([CH2:32][O:34][CH3:35])[N:25]=[C:24]2[CH2:36][CH2:37][CH2:38][CH3:39])=[CH:18][CH:17]=1)=[O:9])([CH3:6])([CH3:5])[CH3:4]
参加物実験手順後処理出典と根拠反応ノート

参加物

7

反応物 4

HCID 6328Methyl iodideHCID 8857Ethyl AcetateHCID 24758Sodium hydrideHCID 19036225Dimethyl 1-[(2'-t-butoxycarbonylbiphenyl-4-yl)methyl]-2-butylimidazole-4,5-dicarboxylate

生成物 1

HCID 19036253Methyl 1-[(2'-t-butoxycarbonylbiphenyl-4-yl)methyl]-2-butyl-4-(methoxymethyl)imidazole-5-carboxylate収率 64.5%

試薬・触媒・溶媒 2

HCID 962Water溶媒
HCID 31374Dimethylacetamide溶媒

実験手順

0.057 g of sodium hydride (as a 55% w/w dispersion in mineral oil) was added to a solution of 0.478 g of methyl 1-[(2'-t-butoxycarbonylbiphenyl-4-yl)methyl]-2-butyl-4-hydroxymethylimidazole-5-carboxylate (prepared as described in Example 1) in 5 ml of N,N-dimethylacetamide, and the resulting mixture was stirred at room temperature for 30 minutes. At the end of this time, 0.125 ml of iodomethane were added, and the reaction mixture was stirred at 50° C. for 3 hours. The reaction mixture was then mixed with ethyl acetate and water. The ethyl acetate layer was separated and dried over anhydrous magnesium sulfate; the solvent was then removed by distillation under reduced pressure. The resulting residue was purified by column chromatography through silica gel, using a 1:1 by volume mixture of ethyl acetate and methylene chloride as the eluent, to give 0.30 g of the title compound as a gum.

後処理

  1. stirringthe reaction mixture was stirred at 50° C. for 3 hours
  2. customThe ethyl acetate layer was separated
  3. dry with materialdried over anhydrous magnesium sulfate
  4. customthe solvent was then removed by distillation under reduced pressure
  5. customThe resulting residue was purified by column chromatography through silica gel
  6. additionby volume mixture of ethyl acetate and methylene chloride as the eluent

出典と根拠

ORDレコード
ord-eea410db976c4d76aaeb17d6808c0481
出典データセット
uspto-grants-1997_07
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US05646171

反応ノート

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