2-Aminobenzenesulfonamide → 2-(5-Bromo-2-chloropyrimidin-4-ylamino)benzenesulfonamide

HRID 1366269

Reaktionsgleichung

Reaktionsgleichung von HRID 1366269
[Br:1][C:2]1[C:3](Cl)=[N:4][C:5]([Cl:8])=[N:6][CH:7]=1.[NH2:10][C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][C:12]=1[S:17]([NH2:20])(=[O:19])=[O:18].C(=O)([O-])O.[Na+]>CC(O)C.Cl>[Br:1][C:2]1[C:3]([NH:10][C:11]2[CH:16]=[CH:15][CH:14]=[CH:13][C:12]=2[S:17]([NH2:20])(=[O:18])=[O:19])=[N:4][C:5]([Cl:8])=[N:6][CH:7]=1

Komponenten

6

Edukt 3

HCID 728942-AminobenzenesulfonamideHCID 2899735-Bromo-2,4-dichloropyrimidineHCID 516892Sodium Bicarbonate

Produkt 1

HCID 859979922-(5-Bromo-2-chloropyrimidin-4-ylamino)benzenesulfonamide

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 313Hydrochloric AcidLösungsmittelHCID 3776IsopropanolLösungsmittel

Reaktionsbedingungen

Temperatur
90 °C

Versuchsvorschrift

To a solution of 5-bromo-2,4-dichloropyrimidine (300 mg, 1.32 mmol) and 2-amino-benzenesulfonamide (340 mg, 1.97 mmol) in 2-propanol (3 mL), concentrated hydrochloric acid (0.06 mL) is added and the mixture is stirred at 90° C. for 4.5 hours. The mixture is poured into aqueous sodium hydrogen carbonate and extracted with ethyl acetate three times. The organic layer is washed with water, dried over sodium sulfate, and evaporated in vacuo. The residue is purified by column chromatography (hexane:ethyl acetate=2:1) to afford the title compound.

Aufarbeitung

  1. extractionextracted with ethyl acetate three times
  2. washThe organic layer is washed with water
  3. dry with materialdried over sodium sulfate
  4. customevaporated in vacuo
  5. customThe residue is purified by column chromatography (hexane:ethyl acetate=2:1)

Quellen und Nachweise

ORD-Eintrag
ord-0a38286668a24c23a8428189c674cb6b
Quelldatensatz
uspto-grants-2011_02
Patentnummer
US07893074B2

Verknüpfte Notizen

Wird geladen…