反应详情

A solution of 5 g. of 1-adamantyl bromomethyl ketone in 10 ml. of dimethylformamide is added dropwise with stirring and ice-cooling to 7 g. imidazole in 10 ml. dimethylformamide. The resulting solution is stirred overnight at room temperature and then poured into 250 ml. water. The precipitate which forms is filtered off, washed with water and air dried. Thereafter the resulting residue is chromatographed on silica gel to effect purification. Elution with 10% acetone in dichloromethane yields 1-adamantyl 1-imidazolylmethyl ketone, M.P. 128.5°-129.5° C.

1. temperatureice-cooling to 7 g
2. stirringThe resulting solution is stirred overnight at room temperature
3. additionpoured into 250 ml
4. filtrationThe precipitate which forms is filtered off
5. washwashed with water and air
6. customdried
7. customThereafter the resulting residue is chromatographed on silica gel
8. custompurification
9. washElution with 10% acetone in dichloromethane