p-Toluenesulfonic acid monohydrate → 5-[1-(4-Methanesulfonyl-phenyl)-4-trifluoromethyl-1H-imidazol-2-yl]-2-methyl-pyridine

HRID 1166362

Reaktionsgleichung

Reaktionsgleichung von HRID 1166362
[CH3:1][C:2]1[CH:7]=[CH:6][C:5]([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)=[CH:4][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][C:5]([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)=[CH:4][N:3]=1

Komponenten

4

Edukt 2

HCID 521998p-Toluenesulfonic acid monohydrateHCID 229981692-Methyl-5-[4-hydroxy-1-[4-(methylsulfonyl)phenyl]-4-(trifluoromethyl)-4,5-dihydro-1h-imidazol-2-yl]pyridine

Produkt 1

HCID 101778455-[1-(4-Methanesulfonyl-phenyl)-4-trifluoromethyl-1H-imidazol-2-yl]-2-methyl-pyridineAusbeute 66 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 1140TolueneLösungsmittel

Versuchsvorschrift

A mixture of the 4,5-dihydro-imidazole of step 2 (6.2 g, 15.5 mmol) and p-toluenesulfonic acid monohydrate (1.6 g, 8.4 mmol) in toluene (550 ml) was heated to reflux for 24 hours. The reaction mixture was cooled and the solvent removed under reduced pressure. The crude mixture (8.2 g) was purified by chromatography on silica gel using ethyl acetate/acetone (98/2) to give pure 2-methyl-5-[1-[4-(methylsulfonyl)phenyl]-4-trifluoromethyl-1H-imidazol-2-yl]pyridine (3.9 g, 66%) as a white solid: mp (DSC) 163° C. Anal Calc'd. for C17H14N3SO2F3: C, 53.54, H, 3.70, N, 11.02, S, 8.41. Found: C, 53.12, H, 3.56, N, 11.00, S, 8.50.

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 (8.2 g) was purified by chromatography on silica gel

Quellen und Nachweise

ORD-Eintrag
ord-a9f1064011264ee3b3a49645e98be5fd
Quelldatensatz
uspto-grants-2003_09
Patentnummer
US06613789B2

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