反应详情

温度

-78 °C

2-Methyl-4-chloro-6-morpholino-pyrimidine (10.7 g.; 50 mmol) was dissolved in tetrahydrofuran (200 mL). The reaction was chilled to −78° C. under an inert atmosphere. A solution of n-butyllithium in hexanes (25 mL, 2.5M, 62.50 mmol) was added, and the reaction mixture was stirred for thirty minutes. A solution of isobutylene oxide 6.6 mL, 75 mmol) was added, and the reaction was allowed to warm to room temperature while stirring overnight. The solvent was removed under reduced pressure, and the crude material was dissolved in methylene chloride (200 mL) and washed with saturated ammonium chloride (2×50 mL), dried with sodium sulfate, and evaporated to dryness. The compound was purified by column chromatography to give 4-(4-chloro-6-morpholin-4-yl-pyrimidin-2-yl)-2-methyl-butan-2-ol (6.2 g., 21.7 mmol).

1. temperatureto warm to room temperature
2. stirringwhile stirring overnight
3. customThe solvent was removed under reduced pressure
4. dissolutionthe crude material was dissolved in methylene chloride (200 mL)
5. washwashed with saturated ammonium chloride (2×50 mL)
6. dry with materialdried with sodium sulfate
7. customevaporated to dryness
8. customThe compound was purified by column chromatography