反应详情

In 3.5 ml of tetrahydrofuran was suspended 0.1 g of sodium hydride (60% in oil), to which 0.3 ml of a solution containing 0.16 g of 2-butyn-1-ol in tetrahydrofuran was added dropwise at room temperature, followed by stirring for 10 minutes. To this was added dropwise 0.3 ml of a solution containing the above 4-chloro-6-(1,3-dimethylbutoxy)pyrimidine in tetrahydrofuran, followed by stirring at room temperature for 4 hour. The reaction mixture was then poured into a saturated aqueous ammonium chloride solution, which was extracted three times with t-butyl methyl ether. The combined organic layers were washed with a saturated aqueous sodium chloride solution, dried over anhydrous magnesium sulfate, and then concentrated. The resulting residue was subjected to silica gel column chromatography to give 0.30 g of 4-(2-butynyloxy)-6-(1,3-dimethylbutyloxy)pyrimidine (the present compound (5)).

1. additionwas added dropwise at room temperature
2. stirringby stirring at room temperature for 4 hour
3. extractionwas extracted three times with t-butyl methyl ether
4. washThe combined organic layers were washed with a saturated aqueous sodium chloride solution
5. dry with materialdried over anhydrous magnesium sulfate
6. concentrationconcentrated