反应详情

5-Methoxypyrimidin-2-amine (12.3 g, 98.3 mmol) was dissolved in pyridine (123 mL), the solution was added with hexanoyl chloride (14.5 g, 108 mmol) on an ice bath, and the mixture was stirred at room temperature for 30 minutes. The reaction mixture was added with 1 M aqueous glycine (98.3 mL) at 0° C., and the mixture was stirred for 1 hour, and then extracted with chloroform. The organic layer was washed with saturated brine, dried over anhydrous sodium sulfate, and then concentrated under reduced pressure, and the resulting residue was azeotroped with toluene. The resulting residue was recrystallized from chloroform-hexane to obtain N-(5-methoxypyrimidin-2-yl)hexanamide (18.4 g, 84%) as colorless solid.

1. stirringthe mixture was stirred for 1 hour
2. extractionextracted with chloroform
3. washThe organic layer was washed with saturated brine
4. dry with materialdried over anhydrous sodium sulfate
5. concentrationconcentrated under reduced pressure
6. customthe resulting residue was azeotroped with toluene
7. customThe resulting residue was recrystallized from chloroform-hexane