3-[4-(benzyloxy)phenyl]-1-ethyl-6-methoxy-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one → 1-ethyl-3-(4-hydroxyphenyl)-6-methoxy-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one

HRID 82624

Reaktionsgleichung

Reaktionsgleichung von HRID 82624
C([O:8][C:9]1[CH:14]=[CH:13][C:12]([N:15]2[C:19]3=[N:20][CH:21]=[C:22]([O:24][CH3:25])[CH:23]=[C:18]3[N:17]([CH2:26][CH3:27])[C:16]2=[O:28])=[CH:11][CH:10]=1)C1C=CC=CC=1>[Pd].CO>[CH2:26]([N:17]1[C:18]2[C:19](=[N:20][CH:21]=[C:22]([O:24][CH3:25])[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:28])[CH3:27]

Komponenten

4

Edukt 1

HCID 585777083-[4-(benzyloxy)phenyl]-1-ethyl-6-methoxy-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one

Produkt 1

HCID 585773681-ethyl-3-(4-hydroxyphenyl)-6-methoxy-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-oneAusbeute 82,2 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 23938PalladiumKatalysatorHCID 887MethanolLösungsmittel

Versuchsvorschrift

A mixture of 3-[4-(benzyloxy)phenyl]-1-ethyl-6-methoxy-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one (120 mg) and 10% palladium on carbon (40 mg) in MeOH (10 mL) was hydrogenated under balloon pressure at room temperature for 2 h. The catalyst was removed by filtration and the filtrate was concentrated in vacuo to give 1-ethyl-3-(4-hydroxyphenyl)-6-methoxy-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one (75 mg) as white crystals.

Aufarbeitung

  1. customThe catalyst was removed by filtration
  2. concentrationthe filtrate was concentrated in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-b293429eb6e0453084d9ae10c2b3ebfd
Quelldatensatz
uspto-grants-2014_09
Patentnummer
US08846713B2

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