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Sodium hydride → tert-Butyl 2-[4-(2-butyl-4-chloro-5-formyl-imidazol-1-yl-methyl)phenyl]-2-cyclopentylacetate

HRID 37219
ノート
印刷プレビュー

反応式

HRID 37219 の反応式
[H-].[Na+].[CH2:3]([C:7]1[NH:8][C:9]([CH:13]=[O:14])=[C:10]([Cl:12])[N:11]=1)[CH2:4][CH2:5][CH3:6].Br[CH2:16][C:17]1[CH:22]=[CH:21][C:20]([CH:23]([CH:31]2[CH2:35][CH2:34][CH2:33][CH2:32]2)[C:24]([O:26][C:27]([CH3:30])([CH3:29])[CH3:28])=[O:25])=[CH:19][CH:18]=1>CN(C=O)C>[CH2:3]([C:7]1[N:8]([CH2:16][C:17]2[CH:18]=[CH:19][C:20]([CH:23]([CH:31]3[CH2:32][CH2:33][CH2:34][CH2:35]3)[C:24]([O:26][C:27]([CH3:30])([CH3:28])[CH3:29])=[O:25])=[CH:21][CH:22]=2)[C:9]([CH:13]=[O:14])=[C:10]([Cl:12])[N:11]=1)[CH2:4][CH2:5][CH3:6]
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

5

反応物 3

HCID 24758Sodium hydrideHCID 15225592tert-Butyl 2-(4-(bromomethyl)phenyl)-2-cyclopentylacetateHCID 178418251HCID 178418251、化合物

生成物 1

HCID 15225591tert-Butyl 2-[4-(2-butyl-4-chloro-5-formyl-imidazol-1-yl-methyl)phenyl]-2-cyclopentylacetate

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒3 回

反応条件

温度
0 °C

実験手順

1.6 g (0.053 mol) of sodium hydride (80%) are suspended under protective gas in 50 ml of DMF, 10 g (0.053 mol) of 2-butyl-5-formyl-4-chloroimidazole (preparation as described in EP 324,377) in 100 ml of DMF are added dropwise at 0° C., the mixture is subsequently stirred for 15 minutes at 0° C., and 18.9 g (0.053 mol) of tert-butyl 2-(4-bromomethylphenyl)-2-cyclopentyl-acetate in 100 ml of DMF are added dropwise. Stirring is continued for 2 hours at 0° C., the solvent is evaporated, the residue is taken up in diethyl ether, the mixture is filtered, and the product is concentrated and then chromatographed over silica gel 60 using dichloromethane. Yield: 16.2 g (66.7% of theory)

後処理

  1. stirringStirring
  2. waitis continued for 2 hours at 0° C.
  3. customthe solvent is evaporated
  4. filtrationthe mixture is filtered
  5. concentrationthe product is concentrated
  6. customchromatographed over silica gel 60 using dichloromethane

出典と根拠

ORDレコード
ord-bbf55e86722a4393af6e6479b9f83698
出典データセット
uspto-grants-1995_05
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US05420149

反応ノート

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