1,2-Dimethoxyethane → (E)-3-(benzyloxy)-N-(4-methylthiazol-2-yl)-5-styrylpyridin-2-amine

Participants

Reaction Conditions

Reaction Steps

3-(Benzyloxy)-5-bromo-N-(4-methylthiazol-2-yl)pyridin-2-amine (0.300 g, 0.797 mmol), (E)-styrylboronic acid (0.142 g, 0.957 mmol), Pd(PPh3)4 (0.0461 g, 0.0399 mmol), and sodium carbonate (0.254 g, 2.39 mmol) were added to DME (10 mL) and water (5 mL) and heated at 80° C. for 18 hours. An additional 0.5 eq of (E)-styrylboronic acid, Pd(PPh3)4, and 2M sodium carbonate were added and the reaction was heated at 80° C. for an additional 6 hrs. The reaction mixture was cooled and partitioned between water and dichloromethane. The layers were separated, dried, filtered, and concentrated to provide the title compound (0.314 g, 98.6% yield). 1H NMR (CDCl3) δ 8.03 (d, 1H), 7.63 (d, 2H), 7.49 (m, 2H), 7.39 (m, 5H), 7.32 (m, 2H), 6.98 (s, 2H), 6.39 (s, 1H), 5.42 (s, 2H), 2.46 (s, 3H). Mass spectrum (apci) m/z=400.0 (M+H).

Provenance & Evidence