反应详情

A mixture of Example 1e (152 mg, 0.40 mmol), 2-phenoxyphenylboronic acid (0.111 g, 0.520 mmol, 1.3 equivalents), Pd(PPh3)4 (0.023 g, 5 mol %) and cesium fluoride (0.182 g, 1.2 mmol) in DME (3 mL) and methanol (1.5 mL) was heated under microwave condition (120° C., 30 minutes). To this mixture was added potassium carbonate (0.055 g, 0.40 mmol) and water (1 mL) and the reaction mixture was reheated in the microwave oven at 120° C. for another 2 hours. The organic layer was separated and purified by flash chromatography (silica gel, ethyl acetate). The resulting material was triturated with acetone and filtered to provide 0.075 g of the title compound (59%). 1H NMR (500 MHz, DMSO-d6) δ 3.50 (s, 3H), 6.21-6.23 (m, 1H), 6.88 (d, J=7.62 Hz, 2H), 6.99-7.04 (m, 2H), 7.24-7.30 (m, 5H), 7.36-7.40 (m, 1H), 7.50 (dd, J=7.48, 1.68 Hz, 1H), 11.98 (s, 1H). MS (ESI+) m/z 317 (M+H)+.

1. customThe organic layer was separated
2. custompurified by flash chromatography (silica gel, ethyl acetate)
3. customThe resulting material was triturated with acetone
4. filtrationfiltered