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Methyl iodide → 5-Bromo-2-[(4-methoxy-benzenesulfonyl)-methyl-amino]-3-methyl-benzoic acid methyl ester

HRID 651075
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 651075
[CH3:1][O:2][C:3](=[O:24])[C:4]1[CH:9]=[C:8]([Br:10])[CH:7]=[C:6]([CH3:11])[C:5]=1[NH:12][S:13]([C:16]1[CH:21]=[CH:20][C:19]([O:22][CH3:23])=[CH:18][CH:17]=1)(=[O:15])=[O:14].[H-].[Na+].I[CH3:28]>CN(C=O)C.CCOCC>[CH3:1][O:2][C:3](=[O:24])[C:4]1[CH:9]=[C:8]([Br:10])[CH:7]=[C:6]([CH3:11])[C:5]=1[N:12]([S:13]([C:16]1[CH:21]=[CH:20][C:19]([O:22][CH3:23])=[CH:18][CH:17]=1)(=[O:15])=[O:14])[CH3:28]
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Komponenten

6

Edukt 3

HCID 6328Methyl iodideHCID 24758Sodium hydrideHCID 542183595-Bromo-2-(4-methoxy-benzenesulfonylamino)-3-methyl-benzoic acid methyl ester

Produkt 1

HCID 699040625-Bromo-2-[(4-methoxy-benzenesulfonyl)-methyl-amino]-3-methyl-benzoic acid methyl esterAusbeute 86,6 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 3283
Diethyl Ether
Lösungsmittel
HCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

To a solution of 5.00 g (0.012 mol) of 5-bromo-2-(4-methoxy-benzenesulfonylamino)-3-methyl-benzoic acid methyl ester (U.S. Pat. No. 5,776,961) in 40 mL of DMF was added 0.604 g (0.015 mol) of 60% sodium hydride. The resulting mixture was stirred at room temperature foe 0.5 h and then 1.2 ml (0.018 mol) of iodomethane was added. The reaction was then stirred for 15 h and then diluted with ether. The organics were washed with water, dried over MgSO4, filtered and concentrated in vacuo. The residue was triturated with ether and the resulting white solid was collected by filtration and dried in vacuo to provide 4.45 g (86%) of the N-methyl sulfonamide. Electrospray Mass Spec 429.8 (M+H)+

Aufarbeitung

  1. stirringThe reaction was then stirred for 15 h
  2. washThe organics were washed with water
  3. dry with materialdried over MgSO4
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo
  6. customThe residue was triturated with ether
  7. filtrationthe resulting white solid was collected by filtration
  8. customdried in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-3b4049de329a4eb7bd4b02ffc4b5f045
Quelldatensatz
uspto-grants-2001_08
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US06277885B1

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