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Methyl iodide → [4-(Tert-butyl-dimethyl-silanyloxy)phenyl]-[(4-but-2-ynyloxy-benzenesulfonyl)-methyl-amino]-acetic acid methyl ester

HRID 2414602
ノート
印刷プレビュー

反応式

HRID 2414602 の反応式
[CH3:1][O:2][C:3](=[O:34])[CH:4]([C:20]1[CH:25]=[CH:24][C:23]([O:26][Si:27]([C:30]([CH3:33])([CH3:32])[CH3:31])([CH3:29])[CH3:28])=[CH:22][CH:21]=1)[NH:5][S:6]([C:9]1[CH:14]=[CH:13][C:12]([O:15][CH2:16][C:17]#[C:18][CH3:19])=[CH:11][CH:10]=1)(=[O:8])=[O:7].[H-].[Na+].I[CH3:38]>CN(C=O)C.O>[CH3:1][O:2][C:3](=[O:34])[CH:4]([C:20]1[CH:21]=[CH:22][C:23]([O:26][Si:27]([C:30]([CH3:33])([CH3:32])[CH3:31])([CH3:28])[CH3:29])=[CH:24][CH:25]=1)[N:5]([S:6]([C:9]1[CH:10]=[CH:11][C:12]([O:15][CH2:16][C:17]#[C:18][CH3:19])=[CH:13][CH:14]=1)(=[O:8])=[O:7])[CH3:38]
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 3

HCID 6328Methyl iodideHCID 24758Sodium hydrideHCID 53702579[4-(Tert-butyl-dimethyl-silanyloxy) phenyl](4-but-2-ynyloxy-benzenesulfonylamino)-acetic acid methyl ester

生成物 1

HCID 53639454[4-(Tert-butyl-dimethyl-silanyloxy)phenyl]-[(4-but-2-ynyloxy-benzenesulfonyl)-methyl-amino]-acetic acid methyl ester

試薬・触媒・溶媒 2

HCID 962Water
溶媒
HCID 6228Dimethylformamide溶媒

実験手順

To a solution of 7.06 g (0.014 mmol) of [4-(tert-butyl-dimethyl-silanyloxy)-phenyl]-(4-but-2-ynyloxy-benzenesulfonylamino)-acetic acid methyl ester dissolved in 50 mL of DMF was added 0.618 g (0.015 mmol) of a 60% oil dispersion of sodium hydride. The reaction was stirred for 30 min at room temperature and then 2.62 mL of iodomethane was added. After 5 h the reaction was diluted with water and extracted with ether. The combined organics were washed with water, dried over magnesium sulfate, filtered and concentrated in vacuo. The residue was chromatographed on silica gel eluting with ethyl acetate/hexanes (1:3) to provide [4-(tert-butyl-dimethyl-silanyloxy)-phenyl]-[(4-but-2-ynyloxy-benzenesulfonyl)-methyl-amino]-acetic acid methyl ester as a white waxy solid. Electrospray Mass Spec 518.4 (M+H)+

後処理

  1. extractionextracted with ether
  2. washThe combined organics were washed with water
  3. dry with materialdried over magnesium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo
  6. customThe residue was chromatographed on silica gel eluting with ethyl acetate/hexanes (1:3)

出典と根拠

ORDレコード
ord-10345447dcd2435186c3582e0e246d44
出典データセット
uspto-grants-2004_11
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US06812227B2

反応ノート

読み込み中…

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