反应详情

温度

40 °C

A mixture of 3-fluoro-4-[5-methoxy-4-oxo-3-(1-phenyl-1H-pyrazol-5-yl)pyridazin-1(4H)-yl]phenyl trifluoromethanesulfonate (255 mg, 0.5 mmol), cyclopropylethylene (0.0846 mL, 1.0 mmol), i-Pr2NEt (0.348 mL, 2.0 mmol), CuI (9.5 mg, 0.05 mmol), Pd(PPh3)2Cl2 (17.5 mg, 0.025 mmol) and PPh3 (6.6 mg, 0.025 mmol) in DMF (1 mL) was heated to 40° C. for 90 min under Ar. The mixture was diluted with NaHCO3 aqueous solution, extracted with AcOEt, dried over Na2SO4, filtered, concentrated in vacuo, purified by column chromatography on basic silica gel (hexane/AcOEt=50/50 to 0/100) and recrystallized with AcOEt/hexane to yield the title compound (181 mg, 85% yield) as a yellow solid: mp 145-146° C. 1H NMR (DMSO-d6, 300 MHz): δ ppm 0.74-0.82 (2H, m), 0.88-0.98 (2H, m), 1.58 (1H, tt, J=8.2, 5.1 Hz), 3.77 (3H, s), 6.91-7.01 (2H, m), 7.20 (1H, dd, J=8.3, 1.1 Hz), 7.28-7.51 (6H, m), 7.78 (1H, d, J=1.9 Hz), 8.47 (1H, d, J=1.9 Hz). Anal. Calcd for C25H19FN4O2: C, 70.41; H, 4.49; N, 13.14. Found: C, 70.33; H, 4.60; N, 13.08.

1. extractionextracted with AcOEt
2. dry with materialdried over Na2SO4
3. filtrationfiltered
4. concentrationconcentrated in vacuo
5. custompurified by column chromatography on basic silica gel (hexane/AcOEt=50/50 to 0/100)
6. customrecrystallized with AcOEt/hexane