(4-Methoxyphenyl)boronic acid → HCID 69344942, Verbindung
Reaktionsgleichung
Br[C:2]1[C:3]([O:10][CH3:11])=[CH:4][C:5]([O:8][CH3:9])=[N:6][CH:7]=1.[CH3:12][O:13][C:14]1[CH:19]=[CH:18][C:17](B(O)O)=[CH:16][CH:15]=1>>[CH3:9][O:8][C:5]1[CH:4]=[C:3]([O:10][CH3:11])[C:2]([C:17]2[CH:18]=[CH:19][C:14]([O:13][CH3:12])=[CH:15][CH:16]=2)=[CH:7][N:6]=1Komponenten
3
Versuchsvorschrift
According to Scheme 23 Step 3: The title compound was prepared from 5-bromo-2,4-dimethoxypyridine (1 eq, 1.40 mmol, 0.30 g) and 4-methoxyphenylboronic acid (1.5 eq, 2.10 mmol, 0.32 g) according to the procedure described for Example 1 Step 3. The crude product was purified by flash chromatography over silica gel (AIT Flashsmart prepacked column 25 g SiO2) using CH2Cl2/MeOH 98/2 to afford 2,4-dimethoxy-5-(4-methoxyphenyl)pyridine (1.39 mmol, 0.34 g, 99%) as a brown oil.
Aufarbeitung
- customThe crude product was purified by flash chromatography over silica gel (AIT Flashsmart prepacked column 25 g SiO2)