反应详情

温度

0 °C

Freshly distilled azidotrimethylsilane (2.65 mL, 20 mmol) was added to a stirred solution of 3-methyl-2-cyclohexen-1-one (Compound 1, 1.13 mL, 10 mmol) and dichloromethane (15 mL) at 0° C. under argon. The solution was stirred for 2 hours at 0° C. before adding a solution of iodine (5.08 g, 20 mmol) in 15 mL of pyridine and 15 mL of dichloromethane. The resulting solution was stirred for 4 hours at room temperature, diluted with ethyl acetate, and was washed successively with 20% aqueous Na2S2O3, 10% aqueous HCl, water, and brine. The solvents were dried (MgSO4) and concentrated under reduced pressure. The residue was purified by flash chromatography on silica gel (7:1, hexanes: ethyl acetate) to give the title compound as a yellow oil.

1. stirringThe resulting solution was stirred for 4 hours at room temperature
2. washwas washed successively with 20% aqueous Na2S2O3, 10% aqueous HCl, water, and brine
3. dry with materialThe solvents were dried (MgSO4)
4. concentrationconcentrated under reduced pressure
5. customThe residue was purified by flash chromatography on silica gel (7:1, hexanes: ethyl acetate)