反应详情

To a stirred solution of 2-chloromethyl-5-hydroxy-pyran-4-one (2) (105.0 g, 656.2 mmol) in DMF (600 mL) was added NaN3 (55.45 g, 853.12 mmol) and the reaction mixture was stirred at room temperature for 16 h. After completion of the reaction, the reaction mixture was diluted with water and extracted with ethyl acetate. Then, the combined organic layer was washed with water and brine, and dried over Na2SO4 and concentrated under reduced pressure to get 2-azidomethyl-5-hydroxy-pyran-4-one (3) (70.0 g, 63.83%) as a light brown solid.

1. customAfter completion of the reaction
2. extractionextracted with ethyl acetate
3. washThen, the combined organic layer was washed with water and brine
4. dry with materialdried over Na2SO4
5. concentrationconcentrated under reduced pressure