反应详情

A solution of 3-methyl-1,2-benzenedimethanol (4.16 g, 27.3 mmol) obtained from Example 22-(1) in tetrahydrofuran (50 ml) was cooled to 0° C., and imidazole (1.86 g, 27.3 mmol) and tert-butylchlorodimethylsilane (4.12 g, 27.3 mmol) were added thereto. The mixture was stirred at room temperature for 3 hours, and then after adding water, the product was extracted with ethyl acetate. The organic layer was washed with a saturated aqueous solution of sodium chloride, then the solvent was distilled off under reduced pressure, and the residue was subjected to chromatography on a silica gel (120 g) column (eluent; ethyl acetate:hexane=1:4) to afford the title compound (4.93 g, 68% yield) as a colorless oil.

1. extractionthe product was extracted with ethyl acetate
2. washThe organic layer was washed with a saturated aqueous solution of sodium chloride
3. distillationthe solvent was distilled off under reduced pressure