3-Bromo-1,1,1-trifluoro-2-propanone → 3-methyl-6-[4-hydroxy-1-[4-(methylsulfonyl)phenyl]-4-(trifluoromethyl)-4,5-dihydro-1H-imidazol-2-yl]pyridine

HRID 52351Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 52351
[CH3:1][C:2]1[CH:3]=[CH:4][C:5]([C:8](=[NH:20])[NH:9][C:10]2[CH:15]=[CH:14][C:13]([S:16]([CH3:19])(=[O:18])=[O:17])=[CH:12][CH:11]=2)=[N:6][CH:7]=1.C(=O)(O)[O-].[Na+].Br[CH2:27][C:28](=[O:33])[C:29]([F:32])([F:31])[F:30]>C(O)(C)C>[CH3:1][C:2]1[CH:7]=[N:6][C:5]([C:8]2[N:9]([C:10]3[CH:15]=[CH:14][C:13]([S:16]([CH3:19])(=[O:18])=[O:17])=[CH:12][CH:11]=3)[CH2:27][C:28]([OH:33])([C:29]([F:32])([F:31])[F:30])[N:20]=2)=[CH:4][CH:3]=1

Komponenten

5

Edukt 3

HCID 790083-Bromo-1,1,1-trifluoro-2-propanoneHCID 516892Sodium BicarbonateHCID 178425635HCID 178425635, Verbindung

Produkt 1

HCID 199633603-methyl-6-[4-hydroxy-1-[4-(methylsulfonyl)phenyl]-4-(trifluoromethyl)-4,5-dihydro-1H-imidazol-2-yl]pyridine

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 3776IsopropanolLösungsmittel

Versuchsvorschrift

To a mixture of the amidine of step 1 (10 mmol and sodium bicarbonate (20 mmol) in isopropanol (150 ml), 3-bromo-1,1,1-trifluoroacetone (15 mmol) is added. After heating at 80°-85° C. for 24 hours, the reaction mixture is cooled and filtered. The residue is washed with methylene chloride and the combined organic fractions are dried over sodium sulfate, filtered and concentrated. The crude mixture is chromatographed on silica gel using mixtures of ethyl acetate, isopropanol and ammonium hydroxide as eluants to give the desired 4,5-dihydro-imidazole

Aufarbeitung

  1. additionis added
  2. temperatureAfter heating at 80°-85° C. for 24 hours
  3. temperaturethe reaction mixture is cooled
  4. filtrationfiltered
  5. washThe residue is washed with methylene chloride
  6. dry with materialthe combined organic fractions are dried over sodium sulfate
  7. filtrationfiltered
  8. concentrationconcentrated
  9. customThe crude mixture is chromatographed on silica gel using mixtures of ethyl acetate, isopropanol and ammonium hydroxide as eluants

Quellen und Nachweise

ORD-Eintrag
ord-316ba6187fd74b6abe45e83fcd3d544a
Quelldatensatz
uspto-grants-1997_04
Patentnummer
US05616601

Notizen zur Reaktion

Wird geladen…