反应详情

温度

0 °C

A solution of 5 mmol of 2-(4-((6-fluoro-2-quinolinyl)oxy)phenoxy)propionyl chloride, prepared using substantially the procedure of Step A of Example 1 from the corresponding acid in 5 milliliters (ml) of methylene chloride, was slowly added to an ice-cooled solution comprising 0.89 grams (g) (5.5 mmol) of 4-aminobenzotrifluoride and 0.61 g (6 mmol) of triethylamine in 30 ml of methylene chloride. The reaction mixture was stirred at 0° C. for 30 minutes then at room temperature for 2 hours. The mixture was poured into a dilute aqueous HCl solution. The organic layer was separated, washed with water, then washed with a saturated aqueous NaHCO3 solution, dried over MgSO4 and evaporated to dryness. The residual solid was taken up in boiling methylcyclohexane, filtered and filtrate allowed to cool to give 1.68 g (71 percent of theoretical) of the above-named product as colorless crystals. The product melted at 153°-155° C. and its structure was confirmed by its infrared (IR) and its nuclear magnetic resonance (NMR) spectrum. (Compound 3)

1. temperaturecooled solution
2. waitat room temperature for 2 hours
3. customThe organic layer was separated
4. washwashed with water
5. washwashed with a saturated aqueous NaHCO3 solution
6. dry with materialdried over MgSO4
7. customevaporated to dryness
8. filtrationfiltered
9. temperatureto cool