反应详情

Sodium azide (0.25 g) was added to a solution of (E)-methyl 2-[2-(6-chloropyrimidin-4-yloxy)phenyl]-3-methoxypropenoate (1.0 g) in DMF (30 ml). The reaction mixture was stirred for 2 hours at room temperature, then for 6 hours at 50° C. After cooling, the reaction mixture was poured into water and extracted with ether (3×100 ml). The combined extracts were washed with brine, dried and concentrated to give (E)-methyl 2-[2-(6-azidopyrimidin-4-yloxy)phenyl]-3-methoxypropenoate (1.02 g, 99%) as an oil; 1H NHR: δ 3.51 (3H, s), 3.65 (3H, s), 6.12 (1H, s), 7.0-7.35 (4H, m), 7.37 (1H, s), mass 8.47 (1H, s) ppm; IR maxima (film): 2135, 1711, 1635 cm−1.

1. waitfor 6 hours at 50° C
2. temperatureAfter cooling
3. extractionextracted with ether (3×100 ml)
4. washThe combined extracts were washed with brine
5. customdried
6. concentrationconcentrated