Potassium Carbonate → Methyl 3-(5,5-dimethylcyclopent-1-enyl)-4-(5-fluoro-2-methoxypyridin-4-yl)benzoate

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

To a flask with methyl 3-(5,5-dimethylcyclopent-1-enyl)-4-(trifluoromethylsulfonyloxy)benzoate 66.61 (404 mg, 1068 μmol) was added Pd(PPh3)4 (123 mg, 107 μmol), potassium carbonate (443 mg, 3203 μmol), 5-fluoro-2-methoxypyridin-4-ylboronic acid 66.12A (456 mg, 2669 μmol, commercially available from Asymchem). The mixture was then degassed, and DMF (3 mL) was added. The reaction was stirred overnight at 87° C. and worked up with EtOAc and water. Silica gel chromatography (0-50% EtOAc/Hexanes) afforded methyl 3-(5,5-dimethylcyclopent-1-enyl)-4-(5-fluoro-2-methoxypyridin-4-yl)benzoate 66.12B 295 mg (78%).

Herkunft & Nachweise