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Sodium hydride → Ethyl 4,5-dibromo-1-(4-fluorobenzyl)-2-({(2-ethoxy-2-oxoethyl)[(4-methylphenyl)sulfonyl]amino}methyl)-1H-pyrrole-3-carboxylate

HRID 640701
ノート
印刷プレビュー

反応式

HRID 640701 の反応式
[Br:1][C:2]1[C:3]([C:18]([O:20][CH2:21][CH3:22])=[O:19])=[C:4]([CH2:16]Br)[N:5]([CH2:8][C:9]2[CH:14]=[CH:13][C:12]([F:15])=[CH:11][CH:10]=2)[C:6]=1[Br:7].[CH3:23][C:24]1[CH:29]=[CH:28][C:27]([S:30]([NH:33][CH2:34][C:35]([O:37][CH2:38][CH3:39])=[O:36])(=[O:32])=[O:31])=[CH:26][CH:25]=1.[H-].[Na+]>C1COCC1>[Br:1][C:2]1[C:3]([C:18]([O:20][CH2:21][CH3:22])=[O:19])=[C:4]([CH2:16][N:33]([CH2:34][C:35]([O:37][CH2:38][CH3:39])=[O:36])[S:30]([C:27]2[CH:26]=[CH:25][C:24]([CH3:23])=[CH:29][CH:28]=2)(=[O:32])=[O:31])[N:5]([CH2:8][C:9]2[CH:14]=[CH:13][C:12]([F:15])=[CH:11][CH:10]=2)[C:6]=1[Br:7]
参加物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 230685Ethyl 2-(4-methylphenylsulfonamido)acetateHCID 53237464ethyl 4,5-dibromo-2-(bromomethyl)-1-(4-fluorobenzyl)-1H-pyrrole-3-carboxylate

生成物 1

HCID 59855815Ethyl 4,5-dibromo-1-(4-fluorobenzyl)-2-({(2-ethoxy-2-oxoethyl)[(4-methylphenyl)sulfonyl]amino}methyl)-1H-pyrrole-3-carboxylate

試薬・触媒・溶媒 1

HCID 8028
Tetrahydrofuran
溶媒

実験手順

To a stirring solution of ethyl 4,5-dibromo-2-(bromomethyl)-1-(4-fluorobenzyl)-1H-pyrrole-3-carboxylate (104.0 g, 0.209 mol) and ethyl N-[(4-methylphenyl)sulfonyl]glycinate (53.7 g, 0.209 mol, prepared by the method of: Ginzel, K. D.; Brungs, P.; Steckhan, E. Tetrahedron 1989, 45, 1691-1701) in anhydrous THF (1.5 L) was added NaH (60% in mineral oil, 8.409, 0.210 mol) in several small portions. The mixture was allowed to stir at room temperature for 16 hours. It was quenched with aq. NH4Cl solution, and extracted with ethyl acetate. The organic layer was dried over Na2SO4, concentrated and the residue was purified by column chromatography with ethyl acetate/hexane (1:4, v:v) to provide the title compound as glue-like material (124 g, 88% yield).

後処理

  1. customIt was quenched with aq. NH4Cl solution
  2. extractionextracted with ethyl acetate
  3. dry with materialThe organic layer was dried over Na2SO4
  4. concentrationconcentrated
  5. customthe residue was purified by column chromatography with ethyl acetate/hexane (1:4, v:v)

出典と根拠

ORDレコード
ord-3ac599957adc419292c6ed1482ab95d9
出典データセット
uspto-grants-2010_04
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07692014B2

反応ノート

読み込み中…

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