反应详情

1-(4-methoxyphenyl)methanamine (1.51 g, 11 mmol) was added in DMF (15 mL), potassium hydroxide was added and stirred at room temperature for 10 minutes. The reaction was cooled to −2° C., 4,6-dichloro-2-methylpyrimidine (1.63 g, 10 mmol) in DMF (5 mL) was added drop-wise at a speed the internal temperature was controlled <0° C. After 30 minutes, the reaction was added ethyl acetate (50 mL), washed with brine (20 mL×2). The organic phase was dried by magnesium sulfate, filter, concentrated and purified by column chromatography through a 110 gram AnaLogix™ silica gel cartridge eluting with 30% ethyl acetate/hexanes to give the title compound as a pale yellow solid.

1. temperatureThe reaction was cooled to −2° C.
2. customwas controlled <0° C
3. waitAfter 30 minutes
4. washwashed with brine (20 mL×2)
5. dry with materialThe organic phase was dried by magnesium sulfate
6. filtrationfilter
7. concentrationconcentrated
8. custompurified by column chromatography through a 110 gram AnaLogix™ silica gel cartridge
9. washeluting with 30% ethyl acetate/hexanes