3-[4-(benzyloxy)phenyl]-1-(difluoromethyl)-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one → 1-(difluoromethyl)-3-(4-hydroxyphenyl)-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one
Reaktionsgleichung
C([O:8][C:9]1[CH:14]=[CH:13][C:12]([N:15]2[C:19]3=[N:20][CH:21]=[CH:22][CH:23]=[C:18]3[N:17]([CH:24]([F:26])[F:25])[C:16]2=[O:27])=[CH:11][CH:10]=1)C1C=CC=CC=1>CCO.[Pd]>[F:26][CH:24]([F:25])[N:17]1[C:18]2[C:19](=[N:20][CH:21]=[CH:22][CH:23]=2)[N:15]([C:12]2[CH:13]=[CH:14][C:9]([OH:8])=[CH:10][CH:11]=2)[C:16]1=[O:27]Komponenten
4
Edukt 1
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 2
Versuchsvorschrift
A mixture of 3-[4-(benzyloxy)phenyl]-1-(difluoromethyl)-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one (420 mg) and 10% Pd—C (60.8 mg) in EtOH (50 ml) was hydrogenated under balloon pressure at room temperature for 3 h. The catalyst was removed by filtration and the filtrate was concentrated in vacuo to give 1-(difluoromethyl)-3-(4-hydroxyphenyl)-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one (300 mg) as a white solid.