反应详情

N-trimethylsilylimidazole (9.5 mL, 64.86 mol) was added to a solution of the crude 1-(3-bromo-phenyl)-2,2-dimethyl-propan-1-ol in tetrahydrofuran (100 mL) in a nitrogen atmosphere at room temperature, and the mixture was stirred overnight. The reaction mixture was poured into distilled water, followed by extraction with dichloromethane. The extract was washed with brine and dried over anhydrous magnesium sulfate, and the solvent was distilled off under reduced pressure. The residue was subjected to silica gel chromatography (hexane:ethyl acetate=20:1) to give the title compound as a colorless oil (11.0 g, 64% in two steps).

1. additionThe reaction mixture was poured
2. distillationinto distilled water
3. extractionfollowed by extraction with dichloromethane
4. washThe extract was washed with brine
5. dry with materialdried over anhydrous magnesium sulfate
6. distillationthe solvent was distilled off under reduced pressure