O-Toluidine → 1-(Phenylsulfonyl)-N-o-tolyl-3-(trifluoromethyl)-1H-pyrrole-2-carboxamide

HRID 524981

Reaktionsgleichung

Reaktionsgleichung von HRID 524981
[NH2:1][C:2]1[C:3]([CH3:8])=[CH:4][CH:5]=[CH:6][CH:7]=1.C[Al](C)C.[C:13]1([S:19]([N:22]2[CH:26]=[CH:25][C:24]([C:27]([F:30])([F:29])[F:28])=[C:23]2[C:31](OC)=[O:32])(=[O:21])=[O:20])[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1.O.O.C(C(C(C([O-])=O)O)O)([O-])=O.[Na+].[Na+]>C1(C)C=CC=CC=1.O>[C:13]1([S:19]([N:22]2[CH:26]=[CH:25][C:24]([C:27]([F:30])([F:28])[F:29])=[C:23]2[C:31]([NH:1][C:2]2[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=2[CH3:8])=[O:32])(=[O:20])=[O:21])[CH:14]=[CH:15][CH:16]=[CH:17][CH:18]=1

Komponenten

7

Edukt 4

HCID 7242O-ToluidineHCID 517351Sodium tartrate-2-hydrateHCID 16682925Trimethylaluminum2×HCID 70922372methyl 1-(phenylsulfonyl)-3-(trifluoromethyl)-1H-pyrrole-2-carboxylate

Produkt 1

HCID 709223191-(Phenylsulfonyl)-N-o-tolyl-3-(trifluoromethyl)-1H-pyrrole-2-carboxamideAusbeute 221,2 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 962WaterLösungsmittelHCID 1140TolueneLösungsmittel2×

Versuchsvorschrift

In a three-necked round-bottom flask o-toluidine (0.53 g, 5 mmol) was dissolved in 15 mL of toluene under inert atmosphere. To this solution was added trimethy aluminium (2.5 mL, 5 mmol) and the mixture was stirred at room temperature during 10 minutes. Afterwards, a solution of methyl 1-(phenylsulfonyl)-3-(trifluoromethyl)-1H-pyrrole-2-carboxylate (207 mg, 0.62 mmol) in 15 mL of toluene were added and the reaction mixtures was heated at 80° C. over night. Next, the mixture was allowed to cool to room temperature and 2-3 mL of water were added to hydrolyze unreacted trimethyl aluminium and a 0,5M aqueous solution of disodium tartrate dihydrate were added stirring for a while. Afterwards, the two layers were separated and the aqueous phase was extracted with ethyl acetate. The organic mixture was washed with the same 0,5M aqueous solution of disodium tartrate dihydrate (25 mL), water and brine, dried and concentrated in vacuum to afford 560 mg of a residue that was used in the following step without further purification.

Aufarbeitung

  1. customthe reaction mixtures
  2. temperaturewas heated at 80° C. over night
  3. temperatureto cool to room temperature
  4. stirringstirring for a while
  5. customAfterwards, the two layers were separated
  6. extractionthe aqueous phase was extracted with ethyl acetate
  7. washThe organic mixture was washed with the same 0,5M aqueous solution of disodium tartrate dihydrate (25 mL), water and brine
  8. customdried
  9. concentrationconcentrated in vacuum

Quellen und Nachweise

ORD-Eintrag
ord-b338121e6cbf435aa0d26dccff587f2e
Quelldatensatz
uspto-grants-2016_05
Patentnummer
US09340547B2

Verknüpfte Notizen

Wird geladen…