p-Toluenesulfonic acid monohydrate → Pyridine,2-methyl-6-[1-[4-(methylsulfonyl)phenyl]-4-(trifluoromethyl)-1h-imidazol-2-yl]-

HRID 52349Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 52349
[CH3:1][C:2]1[CH:7]=[CH:6][CH:5]=[C:4]([C:8]2[N:9]([C:18]3[CH:23]=[CH:22][C:21]([S:24]([CH3:27])(=[O:26])=[O:25])=[CH:20][CH:19]=3)[CH2:10][C:11](O)([C:13]([F:16])([F:15])[F:14])[N:12]=2)[N:3]=1.O.C1(C)C=CC(S(O)(=O)=O)=CC=1>C1(C)C=CC=CC=1>[CH3:1][C:2]1[CH:7]=[CH:6][CH:5]=[C:4]([C:8]2[N:9]([C:18]3[CH:23]=[CH:22][C:21]([S:24]([CH3:27])(=[O:26])=[O:25])=[CH:20][CH:19]=3)[CH:10]=[C:11]([C:13]([F:15])([F:16])[F:14])[N:12]=2)[N:3]=1

Komponenten

4

Edukt 2

HCID 521998p-Toluenesulfonic acid monohydrateHCID 229977732-Methyl-6-[4-hydroxy-1-[4-(methylsulfonyl) phenyl]-4-(trifluoromethyl)-4,5-dihydro-1h-imidazol-2-yl]pyridine

Produkt 1

HCID 10293184Pyridine,2-methyl-6-[1-[4-(methylsulfonyl)phenyl]-4-(trifluoromethyl)-1h-imidazol-2-yl]-Ausbeute 38,6 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 1140TolueneLösungsmittel

Versuchsvorschrift

A mixture of the 4,5-dihydro-imidazole of step 2 (1.3 g, 3.26 mmol) and p-toluenesulfonic acid monohydrate (0.26 g, 1.36 mmol) in toluene (200 ml) was heated to reflux for 24 hours. The reaction mixture was cooled and the solvent removed under reduced pressure. The crude mixture (1.56 g) was chromatographed on silica gel using ethyl acetate/acetone (98/2) to give pure 2-methyl-6-[1-[4-(methylsulfonyl)phenyl]-4-trifluoromethyl-1H-imidazol-2-yl]pyridine (0.48 g, 38%) as a white solid: mp (DSC) 205° C. Anal. Calc'd. for C17H14N3SO2F3 0.25H2O: C, 52.91, H, 3.79, N, 10.89, S, 8.31. Found: C, 52.67, H, 3.55, N, 10.64, S, 8.68.

Aufarbeitung

  1. temperaturewas heated
  2. temperatureto reflux for 24 hours
  3. temperatureThe reaction mixture was cooled
  4. customthe solvent removed under reduced pressure
  5. customThe crude mixture (1.56 g) was chromatographed on silica gel

Quellen und Nachweise

ORD-Eintrag
ord-437a15fdbdc1483f812c3731c5cc2e4f
Quelldatensatz
uspto-grants-1997_04
Patentnummer
US05616601

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