反应详情

温度

45 °C

K2CO3 (0.50 g, 3.6 mmol) followed by methyl iodide (0.20 mL, 2.9 mmol) were added to a stirred mixture of 5-bromo-6-chloropyridin-3-ol (Asymchem Laboratories, Inc., Morrisville, N.C.) (0.50 g, 2.4 mmol) in DMF (3.00 mL) and the mixture was sealed and heated at 45° C. for 4 h and then allowed to stand at room temperature overnight. The resulting mixture was diluted with water and the precipitate was collected and dried to give the product as a tan solid. LCMS (API-ES) m/z 223 (M+H)+; 1H NMR (400 MHz, CDCl3) δ 8.04 (s, 1H) 7.49 (d, J=1.37 Hz, 1H) 3.86 (s, 3H).

1. customthe mixture was sealed
2. customthe precipitate was collected
3. customdried