Reaktionsgleichung
[CH2:1]([O:5][C:6]([C:8]1[N:9]=[C:10](Br)[C:11]2[C:16]([C:17]=1[OH:18])=[CH:15][CH:14]=[C:13]([O:19][C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1)[CH:12]=2)=[O:7])[CH2:2][CH2:3][CH3:4].C([O-])(=O)C.[Na+].CO>[Pd].C(OCC)(=O)C>[CH2:1]([O:5][C:6]([C:8]1[N:9]=[CH:10][C:11]2[C:16]([C:17]=1[OH:18])=[CH:15][CH:14]=[C:13]([O:19][C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1)[CH:12]=2)=[O:7])[CH2:2][CH2:3][CH3:4]Komponenten
6
Edukt 3
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 2
Versuchsvorschrift
A mixture of 208 mg of 1-Bromo-4-hydroxy-7-phenoxy-isoquinoline-3-carboxylic acid butyl ester (0.5 mmol), 49 mg of sodium acetate (0.6 mmol), 50 mg of 10 wt % palladium on charcoal, 10 ml of methanol, and 5 ml of ethyl acetate was stirred under hydrogen at 1 atm for 15 h. Then the mixture was filtered by suction through a pad of celite and was concentrated in vacuo. The residue was partitioned between 2 ml of half concentrated aqueous bicarbonate solution and 8 ml of ethyl acetate. The organic phase was dried over MgSO4. Evaporation in vacuo gave 130 mg of the title compound; 1H NMR (CDCl3): δ=11.89 (bs, 1H), 8.61 (s, 1H), 8.36 (d, 1H), 7.10 to 7.53 (m, 7H), 4.49 (t, 2H), 1.87 (m, 2H), 1.47 (m, 2H), 0.98 (t, 3H).
Aufarbeitung
- filtrationThen the mixture was filtered by suction through a pad of celite
- concentrationwas concentrated in vacuo
- customThe residue was partitioned between 2 ml of half concentrated aqueous bicarbonate solution and 8 ml of ethyl acetate
- dry with materialThe organic phase was dried over MgSO4
- customEvaporation in vacuo
Quellen und Nachweise
- ORD-Eintrag
- ord-a88d71724bd343e08035cd2c650adc4c
- Quelldatensatz
- uspto-grants-2016_05
- Patentnummer
- US09339527B2
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