Dimethyl Sulfate → 5-methoxy-1-tosyl-2,3-dihydro-1H-1-benzazepine

HRID 726696

Reaktionsgleichung

Reaktionsgleichung von HRID 726696
[H-].[Na+].[S:3]([N:13]1[C:19]2[CH:20]=[CH:21][CH:22]=[CH:23][C:18]=2[C:17](=[O:24])[CH2:16][CH2:15][CH2:14]1)([C:6]1[CH:12]=[CH:11][C:9]([CH3:10])=[CH:8][CH:7]=1)(=[O:5])=[O:4].S(OC)(O[CH3:29])(=O)=O.[Cl-].[NH4+]>CN(C)C=O>[CH3:29][O:24][C:17]1[C:18]2[CH:23]=[CH:22][CH:21]=[CH:20][C:19]=2[N:13]([S:3]([C:6]2[CH:7]=[CH:8][C:9]([CH3:10])=[CH:11][CH:12]=2)(=[O:4])=[O:5])[CH2:14][CH2:15][CH:16]=1

Komponenten

6

Edukt 4

HCID 6497Dimethyl SulfateHCID 24758Sodium hydrideHCID 25517Ammonium ChlorideHCID 2668521-Tosyl-3,4-dihydro-1H-benzo[b]azepin-5(2H)-one

Produkt 1

HCID 113819095-methoxy-1-tosyl-2,3-dihydro-1H-1-benzazepine

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

In 10 ml of dimethylformamide was suspended 165 mg of 60% sodium hydride, and 1.0 g of 1-tosyl-2,3,4,5-tetrahydro-1-H-1 -benzazepin-5-one was added to the suspension under ice-cooling, followed by 1 hour of stirring in the ice bath. To this was added dropwise 0.90 ml of dimethyl sulfate, and the mixture was stirred for 30 minutes. After adding ammonium chloride aqueous solution to the reaction solution and subsequently evaporating the solvent, the thus obtained residue was treated with chloroform and water to effect phase separation, and the resulting organic layer was dried over anhydrous magnesium sulfate. The solvent was evaporated and the resulting residue was applied to column chromatography, which was eluted with hexane-ethyl acetate (4:1, v/v) to obtain 621 mg of 5-methoxy-1-tosyl-2,3-dihydro-1H-1-benzazepine.

Aufarbeitung

  1. additionwas added to the suspension under ice-
  2. temperaturecooling
  3. customsubsequently evaporating the solvent
  4. additionthe thus obtained residue was treated with chloroform and water
  5. customphase separation
  6. dry with materialthe resulting organic layer was dried over anhydrous magnesium sulfate
  7. customThe solvent was evaporated
  8. washwas eluted with hexane-ethyl acetate (4:1

Quellen und Nachweise

ORD-Eintrag
ord-19a228057e4c429da16d281f45916afa
Quelldatensatz
uspto-grants-1998_01
Patentnummer
US05710150

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