反应详情

(4-Chloropyrimidin-2-yl)methanol (Example 548, Step 1) (0.304 g, 2.10 mmol) and copper(I) chloride (0.208 g, 2.10 mmol) were taken up in DMF (10 mL) and stirred at room temperature for 5 minutes. Methyl isocyanate (0.120 g, 2.10 mmol) was added and stirring at room temperature continued for 3 hours. Water was added and the reaction mixture was extracted with EtOAc (2×). The combined organic extracts were washed with brine, dried over MgSO4, filtered, and concentrated in vacuo. Purification of the residue by silica gel chromatography (12-100% EtOAc-hexanes) gave the title compound as a white solid.

1. stirringstirring at room temperature
2. waitcontinued for 3 hours
3. extractionthe reaction mixture was extracted with EtOAc (2×)
4. washThe combined organic extracts were washed with brine
5. dry with materialdried over MgSO4
6. filtrationfiltered
7. concentrationconcentrated in vacuo
8. customPurification of the residue by silica gel chromatography (12-100% EtOAc-hexanes)