Cesium carbonate → 2-Pyrrolidin-1-yl-6-(4-trifluoromethyl-phenyl)-isonicotinonitrile

関与物質

反応条件

反応手順

2-Chloro-6-pyrrolidin-1-yl-isonicotinonitrile (0.18 g, 0.87 mmol), 4-trifluoromethylphenylboronic acid (0.18 g, 0.95 mmol), palladium acetate (3.9 mg, 0.02 mmol), cesium carbonate (0.56 g, 1.73 mmol), and XPhos (17 mg, 0.04 mmol) were combined, placed under a nitrogen atmosphere and dioxane (1.0 mL) was added. The reaction vessel was sealed and heated to 100° C. for 2 hours. The reaction mixture was cooled to rt, filtered through celite, concentrated under reduced pressure and purified by flash column chromatography (0%-80% EtOAc in hexane) to provide the desired product (253 mg, 92%). 1H NMR (400 MHz, CDCl3) δ 8.11 (d, J=8.1 Hz, 2H), 7.70 (d, J=8.2 Hz, 2H), 7.15 (d, J=0.8 Hz, 1H), 6.54 (d, J=0.9 Hz, 1H), 3.55 (bs, 4H), 2.13-1.99 (m, 4H).

情報源と証拠