Sodium Carbonate → 5-(6-Methoxy-3-pyridinyl)-2-thiophenecarboxylic acid
Reaktionsgleichung
Br[C:2]1[S:6][C:5]([C:7]([OH:9])=[O:8])=[CH:4][CH:3]=1.Cl.[CH3:11][O:12][C:13]1[N:18]=[CH:17][C:16](B(O)O)=[CH:15][CH:14]=1.C(=O)([O-])[O-].[Na+].[Na+]>>[CH3:11][O:12][C:13]1[N:18]=[CH:17][C:16]([C:2]2[S:6][C:5]([C:7]([OH:9])=[O:8])=[CH:4][CH:3]=2)=[CH:15][CH:14]=1Komponenten
4
Versuchsvorschrift
The title compound is prepared as described in EXAMPLE 31, Part I, but with 5-bromothiophene-2-carboxylic acid and 6-methoxypyridin-3-ylboronic acid hydrochloride as starting materials, and 10 molar equivalents of 0.4M aqueous sodium carbonate. 1H NMR (DMSO) δ 13.10 (br s, 1H), 8.55 (d, 1H), 8.03 (dd, 1H), 7.66 (d, 1H), 7.50 (d, 1H), 6.90 (d, 1H). ESI MS (M+1)+: 236.