反应详情

To a 50 mL round-bottomed flask was added 2-chloro-3-(pyridin-4-yl)pyridine (0.75031 g, 3.9 mmol), 4-aminophenol (0.4302 g, 3.9 mmol), cesium carbonate (0.38 ml, 4.7 mmol) in DMSO at 80° C. Upon completion, the reaction was allowed to cool to room temperature. The reaction mixture was diluted with water (10 ml) and extracted with DCM (3 15 mL). The organic extract was washed with water (1 10 mL), brine (1 10 mL), dried with magnesium sulfate, filtered and concentrated. The residue was taken up in DCM and was loaded onto a SCX cartridge. The impurities were filtered off with DCM and MeOH. 4-(3,4′-Bipyridin-2-yloxy)aniline was filtered from cartridge using 2.0M ammonia in MeOH (MS 264.0).

1. extractionextracted with DCM (3 15 mL)
2. extractionThe organic extract
3. washwas washed with water (1 10 mL), brine (1 10 mL)
4. dry with materialdried with magnesium sulfate
5. filtrationfiltered
6. concentrationconcentrated
7. filtrationThe impurities were filtered off with DCM and MeOH
8. filtration4-(3,4′-Bipyridin-2-yloxy)aniline was filtered from cartridge